Andrey Akinshin's HomepageSelected Writing
Pragmastat: Pragmatic Statistical Toolkit
Weighted quantile estimators
Refined Mann–Whitney U Test
Quantile-respectful density estimation based on the Harrell-Davis quantile estimator · 2024
Stratifications and foliations in phase portraits of gene network models · 2023
Trimmed Harrell-Davis quantile estimator based on the highest density interval of the given wid... · 2022
Quantile absolute deviation · 2022
Finite-sample Rousseeuw-Croux scale estimators · 2022
Finite-sample bias-correction factors for the median absolute deviation based on the Harrell-Da... · 2022
On a Numerical Model of a Circadian Oscillator · 2022
Geometry of error amplification in solving the Prony system with near-colliding nodes · 2021
Mathematical and Numerical Models of the Central Regulatory Circuit of the Morphogenesis System... · 2020
Pro .NET Benchmarking · 2019
Accuracy of spike-train Fourier reconstruction for colliding nodes · 2015
Effect Sizes and Asymmetry · 2024-03-12
The Effect Existence, Its Magnitude, and the Goals · 2024-02-27
Degrees of practical significance · 2024-02-06
Eclectic statistics · 2024-01-16
Sporadic noise problem in change point detection · 2023-11-28
Parametric, Nonparametric, Robust, and Defensive statistics · 2023-08-08
Insidious implicit statistical assumptions · 2023-08-01
A hidden problem of the Mann-Whitney U test implementations in R, Python, Julia in the presence of tie observations
Confusing tie correction in the classic Mann-Whitney U test implementation · 2023-05-23
Investigating the stability of performance measurements on GitHub Actions build agents using simple benchmarks.
Performance stability of GitHub Actions · 2023-03-21
Adaptation of continuous scale measures to discrete distributions · 2023-04-04
p-value distribution of the Mann–Whitney U test in the finite case · 2023-02-28
Debunking the myth about ozone holes, NASA, and outlier removal · 2023-01-31
Comparison of shift, ratio, and effect size as the measures of statistical changes
Trinal statistical thresholds · 2023-01-17
The Huggins-Roy family of effective sample sizes · 2022-09-13
Gastwirth's location estimator · 2022-06-07
A short case study that shows how misleading the standard deviation might be
Misleading standard deviation · 2021-02-23
Misleading histograms · 2020-10-20
The importance of kernel density estimation bandwidth · 2020-10-13
Implementation of an efficient algorithm for changepoint detection: ED-PELT · 2019-10-07
65535 interfaces ought to be enough for anybody · 2017-02-14
Books to reread
Rereading List
Selected Publications
- Quantile-respectful density estimation based on the Harrell-Davis quantile estimator · 2024
- Stratifications and foliations in phase portraits of gene network models · 2023
- Weighted quantile estimators · 2023
- Finite-sample bias-correction factors for the median absolute deviation based on the Harrell-Da... · 2022
- Finite-sample Rousseeuw-Croux scale estimators · 2022
- Mathematical and numerical modelling of the circadian oscillator · 2022
- On a Numerical Model of a Circadian Oscillator · 2022
- Quantile absolute deviation · 2022
- Trimmed Harrell-Davis quantile estimator based on the highest density interval of the given wid... · 2022
- Geometry of error amplification in solving the Prony system with near-colliding nodes · 2021
- A Model of one central regulatory circuit · 2020
- Mathematical and Numerical Models of the Central Regulatory Circuit of the Morphogenesis System... · 2020
- Pro .NET Benchmarking · 2019
- Accuracy of reconstruction of spike-trains with two near-colliding nodes · 2017
- The hard world of microbenchmarking · 2017
- On discrete structures in phase portraits of some non-linear dynamical systems · 2016
- Accuracy of spike-train Fourier reconstruction for colliding nodes · 2015
- Getting Started with Knockout.js for .NET Developers · 2015
- State transition diagrams in hypothetical models of cyclic gene networks functioning · 2015
- A model of one biological 2-cells complex · 2014
- An Extended Model of D. Melanogaster Machrochaete Morphogenesis Gene Network · 2014
- Mathematical modeling of interaction of two cells in proneural cluster of D.mealnogaster
· 2014, In Russian
- Modeling of Two-Cells Complex in Morphogenesis of D. Melanogaster Mechanoreceptors · 2014
- Symmetry in gene network models · 2014
- Analysis of phase portraits in some gene networks models · 2013
- Andronov-Hopf bifurcation for some nonlinear delay equations
· 2013, In Russian
- Mathematical and computational models of gene networks functioning · 2013
- Numerical analysis of gene networks models · 2013
- On some multidimensional models of gene network functioning · 2013
- Oscillating trajectories in some nonlinear dynamical systems · 2013
- Computer analysis of phase portraits in gene networks models · 2012
- Geometric characteristics of cycles in some symmetric dynamical systems (In Russian)
· 2012, In Russian
- Non-uniqueness of cycles in gene networks models · 2012
- On Nonuniqueness of Cycles in Dissipative Dynamical Systems of Chemical Kinetics · 2012
- Research of discrete structures in some cyclic dynamical systems (In Russian)
· 2012, In Russian
- Unstable cycles in gene networks models · 2012
- Mathematical and numerical modeling of gene network functioning · 2011
Blog Posts
- Statistical Efficiency of the Trimmed and Winsorized Mean · 2024-05-21
- Thoughts on Geothmetic Meandian · 2024-05-14
- Statistical Efficiency of the Tau Measure of Location · 2024-05-07
- Lowland multimodality detection and weighted samples · 2024-04-30
- Lowland multimodality detection and robustness · 2024-04-23
- Embracing model misspecification · 2024-04-16
- Preprint announcement: 'Quantile-Respectful Density Estimation Based on the Harrell-Davis Quant... · 2024-04-09
- Lowland multimodality detection and jittering · 2024-04-02
- Quantile-Respectful Density Estimation and Trimming · 2024-03-26
- A better jittering approach for discretization acknowledgment in density estimation · 2024-03-19
- Effect Sizes and Asymmetry · 2024-03-12
- Pragmatic Statistics Manifesto · 2024-03-05
- The Effect Existence, Its Magnitude, and the Goals · 2024-02-27
- Case Study: A City Social Survey · 2024-02-20
- Simplifying adjustments of confidence levels and practical significance thresholds · 2024-02-13
- Degrees of practical significance · 2024-02-06
- Weighted Mann-Whitney U test, Part 3 · 2024-01-30
- Andreas Löffler's implementation of the exact p-values calculations for the Mann-Whitney U test... · 2024-01-23
- Eclectic statistics · 2024-01-16
- Change Point Detection and Recent Changes · 2024-01-09
- Merging extended P² quantile estimators, Part 1 · 2024-01-02
- Hodges-Lehmann ratio estimator vs. Bhattacharyya's scale ratio estimator · 2023-12-26
- Finite-sample Gaussian efficiency: Shamos vs. Rousseeuw-Croux Qn scale estimators · 2023-12-19
- Two-pass change point detection for temporary interval condensation · 2023-12-12
- Inconsistent violin plots · 2023-12-05
- Sporadic noise problem in change point detection · 2023-11-28
- Resistance to the low-density regions: the Hodges-Lehmann location estimator based on the Harre... · 2023-11-21
- Median vs. Hodges-Lehmann: compare efficiency under heavy-tailedness · 2023-11-14
- Thoughts about robustness and efficiency · 2023-11-07
- Finite-sample Gaussian efficiency: Quantile absolute deviation vs. Rousseeuw-Croux scale estima... · 2023-10-31
- Mann-Whitney U test and heteroscedasticity · 2023-10-24
- Exploring the power curve of the Ansari-Bradley test · 2023-10-17
- Exploring the power curve of the Lepage test · 2023-10-10
- Weighted Hodges-Lehmann location estimator and mixture distributions · 2023-10-03
- Carling’s Modification of the Tukey's fences · 2023-09-26
- Central limit theorem and log-normal distribution · 2023-09-19
- Hodges-Lehmann Gaussian efficiency: location shift vs. shift of locations · 2023-09-12
- Thoughts on automatic statistical methods and broken assumptions · 2023-09-05
- Ratio estimator based on the Hodges-Lehmann approach · 2023-08-29
- Weighted Mann-Whitney U test, Part 2 · 2023-08-22
- Exploring the power curve of the Cucconi test · 2023-08-15
- Parametric, Nonparametric, Robust, and Defensive statistics · 2023-08-08
- Insidious implicit statistical assumptions · 2023-08-01
- Four main books on robust statistics · 2023-07-25
- Multimodal distributions and effect size · 2023-07-18
- Unobvious limitations of R *signrank Wilcoxon Signed Rank functions · 2023-07-11
- Weighted Mann-Whitney U test, Part 1 · 2023-07-04
- Joining modes of multimodal distributions · 2023-06-27
- Understanding the pitfalls of preferring the median over the mean · 2023-06-20
- Introducing the defensive statistics · 2023-06-13
- Edgeworth expansion for the Mann-Whitney U test, Part 2: increased accuracy · 2023-06-06
- Edgeworth expansion for the Mann-Whitney U test · 2023-05-30
- Confusing tie correction in the classic Mann-Whitney U test implementation · 2023-05-23
- Efficiency of the central tendency measures under the uniform distribution · 2023-05-16
- Unobvious problems of using the R's implementation of the Hodges-Lehmann estimator · 2023-05-09
- When Python's Mann-Whitney U test returns extremely distorted p-values · 2023-05-02
- When R's Mann-Whitney U test returns extremely distorted p-values · 2023-04-25
- Preprint announcement: 'Weighted quantile estimators' · 2023-04-18
- Rethinking Type I/II error rates with power curves · 2023-04-11
- Adaptation of continuous scale measures to discrete distributions · 2023-04-04
- Weighted modification of the Hodges-Lehmann location estimator · 2023-03-28
- Performance stability of GitHub Actions · 2023-03-21
- p-value distribution of the Brunner–Munzel test in the finite case · 2023-03-14
- Comparing statistical power of the Mann-Whitney U test and the Brunner-Munzel test · 2023-03-07
- p-value distribution of the Mann–Whitney U test in the finite case · 2023-02-28
- Corner case of the Brunner–Munzel test · 2023-02-21
- Examples of the Mann–Whitney U test misuse cases · 2023-02-14
- Types of finite-sample consistency with the standard deviation · 2023-02-07
- Debunking the myth about ozone holes, NASA, and outlier removal · 2023-01-31
- Nonparametric effect size: Cohen's d vs. Glass's delta · 2023-01-24
- Trinal statistical thresholds · 2023-01-17
- Trimmed Hodges-Lehmann location estimator, Part 2: Gaussian efficiency · 2023-01-10
- Trimmed Hodges-Lehmann location estimator, Part 1: breakdown point · 2023-01-03
- Median of the shifts vs. shift of the medians, Part 2: Gaussian efficiency · 2022-12-27
- Median of the shifts vs. shift of the medians, Part 1 · 2022-12-20
- Resistance to the low-density regions: the Hodges-Lehmann location estimator · 2022-12-13
- Kernel density estimation boundary correction: reflection (ggplot2 v3.4.0) · 2022-12-06
- Sheather & Jones vs. unbiased cross-validation · 2022-11-29
- Resistance to the low-density regions: the Harrell-Davis median · 2022-11-22
- Resistance to the low-density regions: the mean and the median · 2022-11-15
- Finite-sample Gaussian efficiency of the trimmed Harrell-Davis median estimator · 2022-11-08
- Finite-sample Gaussian efficiency of the Harrell-Davis median estimator · 2022-11-01
- Weighted quantile estimation for a weighted mixture distribution · 2022-10-25
- Preprint announcement: 'Finite-sample Rousseeuw-Croux scale estimators' · 2022-10-18
- Sensitivity curve of the Harrell-Davis quantile estimator, Part 3 · 2022-10-11
- Sensitivity curve of the Harrell-Davis quantile estimator, Part 2 · 2022-10-04
- Sensitivity curve of the Harrell-Davis quantile estimator, Part 1 · 2022-09-27
- Weighted quantile estimators for exponential smoothing and mixture distributions · 2022-09-20
- The Huggins-Roy family of effective sample sizes · 2022-09-13
- Finite-sample bias correction factors for Rousseeuw-Croux scale estimators · 2022-09-06
- Preprint announcement: 'Quantile absolute deviation' · 2022-09-01
- Standard trimmed Harrell-Davis median estimator · 2022-08-31
- Optimal quantile absolute deviation · 2022-08-30
- Quantile absolute deviation of the Pareto distribution · 2022-08-29
- Quantile absolute deviation of the Exponential distribution · 2022-08-26
- Quantile absolute deviation of the Uniform distribution · 2022-08-25
- Quantile absolute deviation of the Normal distribution · 2022-08-24
- Standard quantile absolute deviation · 2022-08-23
- Asymptotic Gaussian efficiency of the quantile absolute deviation · 2022-08-16
- Finite-sample efficiency of the Rousseeuw-Croux estimators · 2022-08-09
- Caveats of using the median absolute deviation · 2022-08-02
- Preprint announcement: 'Finite-sample bias-correction factors for the median absolute deviation... · 2022-07-26
- Challenges of change point detection in CI performance data · 2022-07-19
- Dynamical System Case Study 2 (Piecewise linear LLL-system) · 2022-07-17
- Degenerate point of dispersion estimators · 2022-07-12
- Untied quantile absolute deviation · 2022-07-05
- Middle non-zero quantile absolute deviation, Part 2 · 2022-06-28
- The expected number of takes from a discrete distribution before observing the given element · 2022-06-21
- Folded medians · 2022-06-14
- Gastwirth's location estimator · 2022-06-07
- Dynamical System Case Study 1 (symmetric 3d system) · 2022-06-05
- Beeping Busy Beavers and twin prime conjecture · 2022-06-01
- Hodges-Lehmann-Sen shift and shift confidence interval estimators · 2022-05-31
- Statistical efficiency of the Hodges-Lehmann median estimator, Part 2 · 2022-05-24
- Statistical efficiency of the Hodges-Lehmann median estimator, Part 1 · 2022-05-17
- Expected value of the maximum of two standard half-normal distributions · 2022-05-10
- Expected value of the minimum of two standard half-normal distributions · 2022-05-03
- Unbiased median absolute deviation for n=2 · 2022-04-26
- Weighted trimmed Harrell-Davis quantile estimator · 2022-04-19
- Minimum meaningful statistical level for the Mann–Whitney U test · 2022-04-12
- Fence-based outlier detectors, Part 2 · 2022-04-05
- Fence-based outlier detectors, Part 1 · 2022-03-29
- Publication announcement: 'Trimmed Harrell-Davis quantile estimator based on the highest densit... · 2022-03-22
- Asymmetric decile-based outlier detector, Part 2 · 2022-03-15
- Asymmetric decile-based outlier detector, Part 1 · 2022-03-08
- Probability of observing outliers using Tukey's fences · 2022-03-01
- Gamma effect size powered by the middle non-zero quantile absolute deviation · 2022-02-22
- Middle non-zero quantile absolute deviation · 2022-02-15
- Unbiased median absolute deviation based on the trimmed Harrell-Davis quantile estimator · 2022-02-08
- Median absolute deviation vs. Shamos estimator · 2022-02-01
- Moving extended P² quantile estimator · 2022-01-25
- Extended P² quantile estimator · 2022-01-18
- P² quantile estimator marker adjusting order · 2022-01-11
- P² quantile estimator initialization strategy · 2022-01-04
- Misleading geometric mean · 2021-12-28
- Matching quantile sets using likelihood based on the binomial coefficients · 2021-12-21
- Ratio function vs. ratio distribution · 2021-12-14
- Shift function vs. shift distribution · 2021-12-07
- Preprint announcement: 'Trimmed Harrell-Davis quantile estimator based on the highest density i... · 2021-11-30
- Non-normal median sampling distribution · 2021-11-23
- Misleading kurtosis · 2021-11-16
- Misleading skewness · 2021-11-09
- Greenwald-Khanna quantile estimator · 2021-11-02
- P² quantile estimator rounding issue · 2021-10-26
- Trimmed Harrell-Davis quantile estimator based on the highest density interval of the given wid... · 2021-10-19
- Optimal window of the trimmed Harrell-Davis quantile estimator, Part 2: Trying Planck-taper win... · 2021-10-12
- Optimal window of the trimmed Harrell-Davis quantile estimator, Part 1: Problems with the recta... · 2021-10-05
- Beta distribution highest density interval of the given width · 2021-09-28
- Quantile estimators based on k order statistics, Part 8: Winsorized Harrell-Davis quantile esti... · 2021-09-21
- Quantile estimators based on k order statistics, Part 7: Optimal threshold for the trimmed Harr... · 2021-09-14
- Quantile estimators based on k order statistics, Part 6: Continuous trimmed Harrell-Davis quant... · 2021-09-07
- Quantile estimators based on k order statistics, Part 5: Improving trimmed Harrell-Davis quanti... · 2021-08-31
- Quantile estimators based on k order statistics, Part 4: Adopting trimmed Harrell-Davis quantil... · 2021-08-24
- Quantile estimators based on k order statistics, Part 3: Playing with the Beta function · 2021-08-17
- Quantile estimators based on k order statistics, Part 2: Extending Hyndman-Fan equations · 2021-08-10
- Quantile estimators based on k order statistics, Part 1: Motivation · 2021-08-03
- Avoiding over-trimming with the trimmed Harrell-Davis quantile estimator · 2021-07-27
- Optimal threshold of the trimmed Harrell-Davis quantile estimator · 2021-07-20
- Estimating quantile confidence intervals: Maritz-Jarrett vs. jackknife · 2021-07-13
- Using Kish's effective sample size with weighted quantiles · 2021-07-06
- Partial binning compression of performance series · 2021-06-29
- Calculating gamma effect size for samples with zero median absolute deviation · 2021-06-22
- Discrete performance distributions · 2021-06-15
- Customization of the nonparametric Cohen's d-consistent effect size · 2021-06-08
- Robust alternative to statistical efficiency · 2021-06-01
- Improving the efficiency of the Harrell-Davis quantile estimator for special cases using custom... · 2021-05-25
- Comparing the efficiency of the Harrell-Davis, Sfakianakis-Verginis, and Navruz-Özdemir quantil... · 2021-05-18
- Dispersion exponential smoothing · 2021-05-11
- Quantile exponential smoothing · 2021-05-04
- Improving quantile-respectful density estimation for discrete distributions using jittering · 2021-04-27
- How to build a smooth density estimation for a discrete sample using jittering · 2021-04-20
- Kernel density estimation and discrete values · 2021-04-13
- Efficiency of the winsorized and trimmed Harrell-Davis quantile estimators · 2021-04-06
- Trimmed modification of the Harrell-Davis quantile estimator · 2021-03-30
- Efficiency of the Harrell-Davis quantile estimator · 2021-03-23
- Navruz-Özdemir quantile estimator · 2021-03-16
- Sfakianakis-Verginis quantile estimator · 2021-03-09
- Winsorized modification of the Harrell-Davis quantile estimator · 2021-03-02
- Misleading standard deviation · 2021-02-23
- Unbiased median absolute deviation based on the Harrell-Davis quantile estimator · 2021-02-16
- Unbiased median absolute deviation · 2021-02-09
- Comparing distribution quantiles using gamma effect size · 2021-02-02
- A single outlier could completely distort your Cohen's d value · 2021-01-26
- Better moving quantile estimations using the partitioning heaps · 2021-01-19
- MP² quantile estimator: estimating the moving median without storing values · 2021-01-12
- Case study: Accuracy of the MAD estimation using the Harrell-Davis quantile estimator (Gumbel d... · 2021-01-05
- Fast implementation of the moving quantile based on the partitioning heaps · 2020-12-29
- Coverage of quantile confidence intervals · 2020-12-22
- Statistical approaches for performance analysis · 2020-12-15
- Quantile confidence intervals for weighted samples · 2020-12-08
- Quantile absolute deviation: estimating statistical dispersion around quantiles · 2020-12-01
- P² quantile estimator: estimating the median without storing values · 2020-11-24
- Plain-text summary notation for multimodal distributions · 2020-11-17
- Intermodal outliers · 2020-11-10
- Lowland multimodality detection · 2020-11-03
- Quantile-respectful density estimation based on the Harrell-Davis quantile estimator · 2020-10-27
- Misleading histograms · 2020-10-20
- The importance of kernel density estimation bandwidth · 2020-10-13
- The median absolute deviation value of the Gumbel distribution · 2020-10-06
- Weighted quantile estimators · 2020-09-29
- Nonparametric Cohen's d-consistent effect size · 2020-06-25
- DoubleMAD outlier detector based on the Harrell-Davis quantile estimator · 2020-06-22
- How ListSeparator Depends on Runtime and Operating System · 2020-05-20
- How Sorting Order Depends on Runtime and Operating System · 2020-05-13
- How Socket Error Codes Depend on Runtime and Operating System · 2020-04-27
- .NET Core performance revolution in Rider 2020.1 · 2020-04-14
- Introducing perfolizer · 2020-03-04
- Distribution comparison via the shift and ratio functions · 2019-10-11
- Normality is a myth · 2019-10-09
- Implementation of an efficient algorithm for changepoint detection: ED-PELT · 2019-10-07
- A story about slow NuGet package browsing · 2018-05-08
- Cross-runtime .NET disassembly with BenchmarkDotNet · 2018-04-10
- BenchmarkDotNet v0.10.14 · 2018-04-09
- BenchmarkDotNet v0.10.13 · 2018-03-02
- Analyzing distribution of Mono GC collections · 2018-02-20
- BenchmarkDotNet v0.10.12 · 2018-01-15
- BenchmarkDotNet v0.10.10 · 2017-11-03
- Reflecting on performance testing · 2017-08-01
- Measuring Performance Improvements in .NET Core with BenchmarkDotNet (Part 1) · 2017-06-09
- BenchmarkDotNet v0.10.7 · 2017-06-05
- 65535 interfaces ought to be enough for anybody · 2017-02-14
- A bug story about named mutex on Mono · 2017-02-13
- InvalidDataException in Process.GetProcesses · 2017-02-10
- Why is NuGet search in Rider so fast? · 2017-02-08
- NuGet2 and a DirectorySeparatorChar bug · 2017-02-06
- Performance exercise: Division · 2016-12-26
- Performance exercise: Minimum · 2016-12-20
- Stopwatch under the hood · 2016-09-09
- DateTime under the hood · 2016-08-19
- LegacyJIT-x86 and first method call · 2016-04-04
- Visual Studio and ProjectTypeGuids.cs · 2016-02-27
- Blittable types · 2015-11-26
- RyuJIT RC and constant folding · 2015-05-12
- Unrolling of small loops in different JIT versions · 2015-03-02
- RyuJIT CTP5 and loop unrolling · 2015-03-01
- JIT version determining in runtime · 2015-02-28
- A bug story about JIT-x64 · 2015-02-27
- A story about JIT-x86 inlining and starg · 2015-02-26
- About UTF-8 conversions in Mono · 2014-11-10
- Happy Monday! · 2014-08-11
- To Refactor Or Not To Refactor? · 2014-07-19
- Strange behavior of FindElementsInHostCoordinates in WinRT · 2014-04-29
- About System.Drawing.Color and operator == · 2014-02-21
- Setting up build configuration in .NET · 2014-02-08
- Jon Skeet's Quiz · 2013-11-03
- Perfect code and real projects · 2013-08-28
- To Add Comments or Not to Add? · 2013-08-28
- Unexpected area to collect garbage in .NET · 2013-08-08
- Unobviousness in use of C# closures · 2013-08-07
- Wrapping C# class for use in COM · 2013-06-03
Andrey Akinshin's Homepage
Selected Writing
Pragmastat: Pragmatic Statistical Toolkit
Weighted quantile estimators
Refined Mann–Whitney U Test
Quantile-respectful density estimation based on the Harrell-Davis quantile estimator · 2024
Stratifications and foliations in phase portraits of gene network models · 2023
Trimmed Harrell-Davis quantile estimator based on the highest density interval of the given wid... · 2022
Quantile absolute deviation · 2022
Finite-sample Rousseeuw-Croux scale estimators · 2022
Finite-sample bias-correction factors for the median absolute deviation based on the Harrell-Da... · 2022
On a Numerical Model of a Circadian Oscillator · 2022
Geometry of error amplification in solving the Prony system with near-colliding nodes · 2021
Mathematical and Numerical Models of the Central Regulatory Circuit of the Morphogenesis System... · 2020
Pro .NET Benchmarking · 2019
Accuracy of spike-train Fourier reconstruction for colliding nodes · 2015
Effect Sizes and Asymmetry · 2024-03-12
The Effect Existence, Its Magnitude, and the Goals · 2024-02-27
Degrees of practical significance · 2024-02-06
Eclectic statistics · 2024-01-16
Sporadic noise problem in change point detection · 2023-11-28
Parametric, Nonparametric, Robust, and Defensive statistics · 2023-08-08
Insidious implicit statistical assumptions · 2023-08-01
A hidden problem of the Mann-Whitney U test implementations in R, Python, Julia in the presence of tie observations
Confusing tie correction in the classic Mann-Whitney U test implementation · 2023-05-23
Investigating the stability of performance measurements on GitHub Actions build agents using simple benchmarks.
Performance stability of GitHub Actions · 2023-03-21
Adaptation of continuous scale measures to discrete distributions · 2023-04-04
p-value distribution of the Mann–Whitney U test in the finite case · 2023-02-28
Debunking the myth about ozone holes, NASA, and outlier removal · 2023-01-31
Comparison of shift, ratio, and effect size as the measures of statistical changes
Trinal statistical thresholds · 2023-01-17
The Huggins-Roy family of effective sample sizes · 2022-09-13
Gastwirth's location estimator · 2022-06-07
A short case study that shows how misleading the standard deviation might be
Misleading standard deviation · 2021-02-23
Misleading histograms · 2020-10-20
The importance of kernel density estimation bandwidth · 2020-10-13
Implementation of an efficient algorithm for changepoint detection: ED-PELT · 2019-10-07
65535 interfaces ought to be enough for anybody · 2017-02-14
Books to reread
Rereading List
Selected Publications
- Quantile-respectful density estimation based on the Harrell-Davis quantile estimator · 2024
- Stratifications and foliations in phase portraits of gene network models · 2023
- Weighted quantile estimators · 2023
- Finite-sample bias-correction factors for the median absolute deviation based on the Harrell-Da... · 2022
- Finite-sample Rousseeuw-Croux scale estimators · 2022
- Mathematical and numerical modelling of the circadian oscillator · 2022
- On a Numerical Model of a Circadian Oscillator · 2022
- Quantile absolute deviation · 2022
- Trimmed Harrell-Davis quantile estimator based on the highest density interval of the given wid... · 2022
- Geometry of error amplification in solving the Prony system with near-colliding nodes · 2021
- A Model of one central regulatory circuit · 2020
- Mathematical and Numerical Models of the Central Regulatory Circuit of the Morphogenesis System... · 2020
- Pro .NET Benchmarking · 2019
- Accuracy of reconstruction of spike-trains with two near-colliding nodes · 2017
- The hard world of microbenchmarking · 2017
- On discrete structures in phase portraits of some non-linear dynamical systems · 2016
- Accuracy of spike-train Fourier reconstruction for colliding nodes · 2015
- Getting Started with Knockout.js for .NET Developers · 2015
- State transition diagrams in hypothetical models of cyclic gene networks functioning · 2015
- A model of one biological 2-cells complex · 2014
- An Extended Model of D. Melanogaster Machrochaete Morphogenesis Gene Network · 2014
- Mathematical modeling of interaction of two cells in proneural cluster of D.mealnogaster · 2014, In Russian
- Modeling of Two-Cells Complex in Morphogenesis of D. Melanogaster Mechanoreceptors · 2014
- Symmetry in gene network models · 2014
- Analysis of phase portraits in some gene networks models · 2013
- Andronov-Hopf bifurcation for some nonlinear delay equations · 2013, In Russian
- Mathematical and computational models of gene networks functioning · 2013
- Numerical analysis of gene networks models · 2013
- On some multidimensional models of gene network functioning · 2013
- Oscillating trajectories in some nonlinear dynamical systems · 2013
- Computer analysis of phase portraits in gene networks models · 2012
- Geometric characteristics of cycles in some symmetric dynamical systems (In Russian) · 2012, In Russian
- Non-uniqueness of cycles in gene networks models · 2012
- On Nonuniqueness of Cycles in Dissipative Dynamical Systems of Chemical Kinetics · 2012
- Research of discrete structures in some cyclic dynamical systems (In Russian) · 2012, In Russian
- Unstable cycles in gene networks models · 2012
- Mathematical and numerical modeling of gene network functioning · 2011
Blog Posts
- Statistical Efficiency of the Trimmed and Winsorized Mean · 2024-05-21
- Thoughts on Geothmetic Meandian · 2024-05-14
- Statistical Efficiency of the Tau Measure of Location · 2024-05-07
- Lowland multimodality detection and weighted samples · 2024-04-30
- Lowland multimodality detection and robustness · 2024-04-23
- Embracing model misspecification · 2024-04-16
- Preprint announcement: 'Quantile-Respectful Density Estimation Based on the Harrell-Davis Quant... · 2024-04-09
- Lowland multimodality detection and jittering · 2024-04-02
- Quantile-Respectful Density Estimation and Trimming · 2024-03-26
- A better jittering approach for discretization acknowledgment in density estimation · 2024-03-19
- Effect Sizes and Asymmetry · 2024-03-12
- Pragmatic Statistics Manifesto · 2024-03-05
- The Effect Existence, Its Magnitude, and the Goals · 2024-02-27
- Case Study: A City Social Survey · 2024-02-20
- Simplifying adjustments of confidence levels and practical significance thresholds · 2024-02-13
- Degrees of practical significance · 2024-02-06
- Weighted Mann-Whitney U test, Part 3 · 2024-01-30
- Andreas Löffler's implementation of the exact p-values calculations for the Mann-Whitney U test... · 2024-01-23
- Eclectic statistics · 2024-01-16
- Change Point Detection and Recent Changes · 2024-01-09
- Merging extended P² quantile estimators, Part 1 · 2024-01-02
- Hodges-Lehmann ratio estimator vs. Bhattacharyya's scale ratio estimator · 2023-12-26
- Finite-sample Gaussian efficiency: Shamos vs. Rousseeuw-Croux Qn scale estimators · 2023-12-19
- Two-pass change point detection for temporary interval condensation · 2023-12-12
- Inconsistent violin plots · 2023-12-05
- Sporadic noise problem in change point detection · 2023-11-28
- Resistance to the low-density regions: the Hodges-Lehmann location estimator based on the Harre... · 2023-11-21
- Median vs. Hodges-Lehmann: compare efficiency under heavy-tailedness · 2023-11-14
- Thoughts about robustness and efficiency · 2023-11-07
- Finite-sample Gaussian efficiency: Quantile absolute deviation vs. Rousseeuw-Croux scale estima... · 2023-10-31
- Mann-Whitney U test and heteroscedasticity · 2023-10-24
- Exploring the power curve of the Ansari-Bradley test · 2023-10-17
- Exploring the power curve of the Lepage test · 2023-10-10
- Weighted Hodges-Lehmann location estimator and mixture distributions · 2023-10-03
- Carling’s Modification of the Tukey's fences · 2023-09-26
- Central limit theorem and log-normal distribution · 2023-09-19
- Hodges-Lehmann Gaussian efficiency: location shift vs. shift of locations · 2023-09-12
- Thoughts on automatic statistical methods and broken assumptions · 2023-09-05
- Ratio estimator based on the Hodges-Lehmann approach · 2023-08-29
- Weighted Mann-Whitney U test, Part 2 · 2023-08-22
- Exploring the power curve of the Cucconi test · 2023-08-15
- Parametric, Nonparametric, Robust, and Defensive statistics · 2023-08-08
- Insidious implicit statistical assumptions · 2023-08-01
- Four main books on robust statistics · 2023-07-25
- Multimodal distributions and effect size · 2023-07-18
- Unobvious limitations of R *signrank Wilcoxon Signed Rank functions · 2023-07-11
- Weighted Mann-Whitney U test, Part 1 · 2023-07-04
- Joining modes of multimodal distributions · 2023-06-27
- Understanding the pitfalls of preferring the median over the mean · 2023-06-20
- Introducing the defensive statistics · 2023-06-13
- Edgeworth expansion for the Mann-Whitney U test, Part 2: increased accuracy · 2023-06-06
- Edgeworth expansion for the Mann-Whitney U test · 2023-05-30
- Confusing tie correction in the classic Mann-Whitney U test implementation · 2023-05-23
- Efficiency of the central tendency measures under the uniform distribution · 2023-05-16
- Unobvious problems of using the R's implementation of the Hodges-Lehmann estimator · 2023-05-09
- When Python's Mann-Whitney U test returns extremely distorted p-values · 2023-05-02
- When R's Mann-Whitney U test returns extremely distorted p-values · 2023-04-25
- Preprint announcement: 'Weighted quantile estimators' · 2023-04-18
- Rethinking Type I/II error rates with power curves · 2023-04-11
- Adaptation of continuous scale measures to discrete distributions · 2023-04-04
- Weighted modification of the Hodges-Lehmann location estimator · 2023-03-28
- Performance stability of GitHub Actions · 2023-03-21
- p-value distribution of the Brunner–Munzel test in the finite case · 2023-03-14
- Comparing statistical power of the Mann-Whitney U test and the Brunner-Munzel test · 2023-03-07
- p-value distribution of the Mann–Whitney U test in the finite case · 2023-02-28
- Corner case of the Brunner–Munzel test · 2023-02-21
- Examples of the Mann–Whitney U test misuse cases · 2023-02-14
- Types of finite-sample consistency with the standard deviation · 2023-02-07
- Debunking the myth about ozone holes, NASA, and outlier removal · 2023-01-31
- Nonparametric effect size: Cohen's d vs. Glass's delta · 2023-01-24
- Trinal statistical thresholds · 2023-01-17
- Trimmed Hodges-Lehmann location estimator, Part 2: Gaussian efficiency · 2023-01-10
- Trimmed Hodges-Lehmann location estimator, Part 1: breakdown point · 2023-01-03
- Median of the shifts vs. shift of the medians, Part 2: Gaussian efficiency · 2022-12-27
- Median of the shifts vs. shift of the medians, Part 1 · 2022-12-20
- Resistance to the low-density regions: the Hodges-Lehmann location estimator · 2022-12-13
- Kernel density estimation boundary correction: reflection (ggplot2 v3.4.0) · 2022-12-06
- Sheather & Jones vs. unbiased cross-validation · 2022-11-29
- Resistance to the low-density regions: the Harrell-Davis median · 2022-11-22
- Resistance to the low-density regions: the mean and the median · 2022-11-15
- Finite-sample Gaussian efficiency of the trimmed Harrell-Davis median estimator · 2022-11-08
- Finite-sample Gaussian efficiency of the Harrell-Davis median estimator · 2022-11-01
- Weighted quantile estimation for a weighted mixture distribution · 2022-10-25
- Preprint announcement: 'Finite-sample Rousseeuw-Croux scale estimators' · 2022-10-18
- Sensitivity curve of the Harrell-Davis quantile estimator, Part 3 · 2022-10-11
- Sensitivity curve of the Harrell-Davis quantile estimator, Part 2 · 2022-10-04
- Sensitivity curve of the Harrell-Davis quantile estimator, Part 1 · 2022-09-27
- Weighted quantile estimators for exponential smoothing and mixture distributions · 2022-09-20
- The Huggins-Roy family of effective sample sizes · 2022-09-13
- Finite-sample bias correction factors for Rousseeuw-Croux scale estimators · 2022-09-06
- Preprint announcement: 'Quantile absolute deviation' · 2022-09-01
- Standard trimmed Harrell-Davis median estimator · 2022-08-31
- Optimal quantile absolute deviation · 2022-08-30
- Quantile absolute deviation of the Pareto distribution · 2022-08-29
- Quantile absolute deviation of the Exponential distribution · 2022-08-26
- Quantile absolute deviation of the Uniform distribution · 2022-08-25
- Quantile absolute deviation of the Normal distribution · 2022-08-24
- Standard quantile absolute deviation · 2022-08-23
- Asymptotic Gaussian efficiency of the quantile absolute deviation · 2022-08-16
- Finite-sample efficiency of the Rousseeuw-Croux estimators · 2022-08-09
- Caveats of using the median absolute deviation · 2022-08-02
- Preprint announcement: 'Finite-sample bias-correction factors for the median absolute deviation... · 2022-07-26
- Challenges of change point detection in CI performance data · 2022-07-19
- Dynamical System Case Study 2 (Piecewise linear LLL-system) · 2022-07-17
- Degenerate point of dispersion estimators · 2022-07-12
- Untied quantile absolute deviation · 2022-07-05
- Middle non-zero quantile absolute deviation, Part 2 · 2022-06-28
- The expected number of takes from a discrete distribution before observing the given element · 2022-06-21
- Folded medians · 2022-06-14
- Gastwirth's location estimator · 2022-06-07
- Dynamical System Case Study 1 (symmetric 3d system) · 2022-06-05
- Beeping Busy Beavers and twin prime conjecture · 2022-06-01
- Hodges-Lehmann-Sen shift and shift confidence interval estimators · 2022-05-31
- Statistical efficiency of the Hodges-Lehmann median estimator, Part 2 · 2022-05-24
- Statistical efficiency of the Hodges-Lehmann median estimator, Part 1 · 2022-05-17
- Expected value of the maximum of two standard half-normal distributions · 2022-05-10
- Expected value of the minimum of two standard half-normal distributions · 2022-05-03
- Unbiased median absolute deviation for n=2 · 2022-04-26
- Weighted trimmed Harrell-Davis quantile estimator · 2022-04-19
- Minimum meaningful statistical level for the Mann–Whitney U test · 2022-04-12
- Fence-based outlier detectors, Part 2 · 2022-04-05
- Fence-based outlier detectors, Part 1 · 2022-03-29
- Publication announcement: 'Trimmed Harrell-Davis quantile estimator based on the highest densit... · 2022-03-22
- Asymmetric decile-based outlier detector, Part 2 · 2022-03-15
- Asymmetric decile-based outlier detector, Part 1 · 2022-03-08
- Probability of observing outliers using Tukey's fences · 2022-03-01
- Gamma effect size powered by the middle non-zero quantile absolute deviation · 2022-02-22
- Middle non-zero quantile absolute deviation · 2022-02-15
- Unbiased median absolute deviation based on the trimmed Harrell-Davis quantile estimator · 2022-02-08
- Median absolute deviation vs. Shamos estimator · 2022-02-01
- Moving extended P² quantile estimator · 2022-01-25
- Extended P² quantile estimator · 2022-01-18
- P² quantile estimator marker adjusting order · 2022-01-11
- P² quantile estimator initialization strategy · 2022-01-04
- Misleading geometric mean · 2021-12-28
- Matching quantile sets using likelihood based on the binomial coefficients · 2021-12-21
- Ratio function vs. ratio distribution · 2021-12-14
- Shift function vs. shift distribution · 2021-12-07
- Preprint announcement: 'Trimmed Harrell-Davis quantile estimator based on the highest density i... · 2021-11-30
- Non-normal median sampling distribution · 2021-11-23
- Misleading kurtosis · 2021-11-16
- Misleading skewness · 2021-11-09
- Greenwald-Khanna quantile estimator · 2021-11-02
- P² quantile estimator rounding issue · 2021-10-26
- Trimmed Harrell-Davis quantile estimator based on the highest density interval of the given wid... · 2021-10-19
- Optimal window of the trimmed Harrell-Davis quantile estimator, Part 2: Trying Planck-taper win... · 2021-10-12
- Optimal window of the trimmed Harrell-Davis quantile estimator, Part 1: Problems with the recta... · 2021-10-05
- Beta distribution highest density interval of the given width · 2021-09-28
- Quantile estimators based on k order statistics, Part 8: Winsorized Harrell-Davis quantile esti... · 2021-09-21
- Quantile estimators based on k order statistics, Part 7: Optimal threshold for the trimmed Harr... · 2021-09-14
- Quantile estimators based on k order statistics, Part 6: Continuous trimmed Harrell-Davis quant... · 2021-09-07
- Quantile estimators based on k order statistics, Part 5: Improving trimmed Harrell-Davis quanti... · 2021-08-31
- Quantile estimators based on k order statistics, Part 4: Adopting trimmed Harrell-Davis quantil... · 2021-08-24
- Quantile estimators based on k order statistics, Part 3: Playing with the Beta function · 2021-08-17
- Quantile estimators based on k order statistics, Part 2: Extending Hyndman-Fan equations · 2021-08-10
- Quantile estimators based on k order statistics, Part 1: Motivation · 2021-08-03
- Avoiding over-trimming with the trimmed Harrell-Davis quantile estimator · 2021-07-27
- Optimal threshold of the trimmed Harrell-Davis quantile estimator · 2021-07-20
- Estimating quantile confidence intervals: Maritz-Jarrett vs. jackknife · 2021-07-13
- Using Kish's effective sample size with weighted quantiles · 2021-07-06
- Partial binning compression of performance series · 2021-06-29
- Calculating gamma effect size for samples with zero median absolute deviation · 2021-06-22
- Discrete performance distributions · 2021-06-15
- Customization of the nonparametric Cohen's d-consistent effect size · 2021-06-08
- Robust alternative to statistical efficiency · 2021-06-01
- Improving the efficiency of the Harrell-Davis quantile estimator for special cases using custom... · 2021-05-25
- Comparing the efficiency of the Harrell-Davis, Sfakianakis-Verginis, and Navruz-Özdemir quantil... · 2021-05-18
- Dispersion exponential smoothing · 2021-05-11
- Quantile exponential smoothing · 2021-05-04
- Improving quantile-respectful density estimation for discrete distributions using jittering · 2021-04-27
- How to build a smooth density estimation for a discrete sample using jittering · 2021-04-20
- Kernel density estimation and discrete values · 2021-04-13
- Efficiency of the winsorized and trimmed Harrell-Davis quantile estimators · 2021-04-06
- Trimmed modification of the Harrell-Davis quantile estimator · 2021-03-30
- Efficiency of the Harrell-Davis quantile estimator · 2021-03-23
- Navruz-Özdemir quantile estimator · 2021-03-16
- Sfakianakis-Verginis quantile estimator · 2021-03-09
- Winsorized modification of the Harrell-Davis quantile estimator · 2021-03-02
- Misleading standard deviation · 2021-02-23
- Unbiased median absolute deviation based on the Harrell-Davis quantile estimator · 2021-02-16
- Unbiased median absolute deviation · 2021-02-09
- Comparing distribution quantiles using gamma effect size · 2021-02-02
- A single outlier could completely distort your Cohen's d value · 2021-01-26
- Better moving quantile estimations using the partitioning heaps · 2021-01-19
- MP² quantile estimator: estimating the moving median without storing values · 2021-01-12
- Case study: Accuracy of the MAD estimation using the Harrell-Davis quantile estimator (Gumbel d... · 2021-01-05
- Fast implementation of the moving quantile based on the partitioning heaps · 2020-12-29
- Coverage of quantile confidence intervals · 2020-12-22
- Statistical approaches for performance analysis · 2020-12-15
- Quantile confidence intervals for weighted samples · 2020-12-08
- Quantile absolute deviation: estimating statistical dispersion around quantiles · 2020-12-01
- P² quantile estimator: estimating the median without storing values · 2020-11-24
- Plain-text summary notation for multimodal distributions · 2020-11-17
- Intermodal outliers · 2020-11-10
- Lowland multimodality detection · 2020-11-03
- Quantile-respectful density estimation based on the Harrell-Davis quantile estimator · 2020-10-27
- Misleading histograms · 2020-10-20
- The importance of kernel density estimation bandwidth · 2020-10-13
- The median absolute deviation value of the Gumbel distribution · 2020-10-06
- Weighted quantile estimators · 2020-09-29
- Nonparametric Cohen's d-consistent effect size · 2020-06-25
- DoubleMAD outlier detector based on the Harrell-Davis quantile estimator · 2020-06-22
- How ListSeparator Depends on Runtime and Operating System · 2020-05-20
- How Sorting Order Depends on Runtime and Operating System · 2020-05-13
- How Socket Error Codes Depend on Runtime and Operating System · 2020-04-27
- .NET Core performance revolution in Rider 2020.1 · 2020-04-14
- Introducing perfolizer · 2020-03-04
- Distribution comparison via the shift and ratio functions · 2019-10-11
- Normality is a myth · 2019-10-09
- Implementation of an efficient algorithm for changepoint detection: ED-PELT · 2019-10-07
- A story about slow NuGet package browsing · 2018-05-08
- Cross-runtime .NET disassembly with BenchmarkDotNet · 2018-04-10
- BenchmarkDotNet v0.10.14 · 2018-04-09
- BenchmarkDotNet v0.10.13 · 2018-03-02
- Analyzing distribution of Mono GC collections · 2018-02-20
- BenchmarkDotNet v0.10.12 · 2018-01-15
- BenchmarkDotNet v0.10.10 · 2017-11-03
- Reflecting on performance testing · 2017-08-01
- Measuring Performance Improvements in .NET Core with BenchmarkDotNet (Part 1) · 2017-06-09
- BenchmarkDotNet v0.10.7 · 2017-06-05
- 65535 interfaces ought to be enough for anybody · 2017-02-14
- A bug story about named mutex on Mono · 2017-02-13
- InvalidDataException in Process.GetProcesses · 2017-02-10
- Why is NuGet search in Rider so fast? · 2017-02-08
- NuGet2 and a DirectorySeparatorChar bug · 2017-02-06
- Performance exercise: Division · 2016-12-26
- Performance exercise: Minimum · 2016-12-20
- Stopwatch under the hood · 2016-09-09
- DateTime under the hood · 2016-08-19
- LegacyJIT-x86 and first method call · 2016-04-04
- Visual Studio and ProjectTypeGuids.cs · 2016-02-27
- Blittable types · 2015-11-26
- RyuJIT RC and constant folding · 2015-05-12
- Unrolling of small loops in different JIT versions · 2015-03-02
- RyuJIT CTP5 and loop unrolling · 2015-03-01
- JIT version determining in runtime · 2015-02-28
- A bug story about JIT-x64 · 2015-02-27
- A story about JIT-x86 inlining and starg · 2015-02-26
- About UTF-8 conversions in Mono · 2014-11-10
- Happy Monday! · 2014-08-11
- To Refactor Or Not To Refactor? · 2014-07-19
- Strange behavior of FindElementsInHostCoordinates in WinRT · 2014-04-29
- About System.Drawing.Color and operator == · 2014-02-21
- Setting up build configuration in .NET · 2014-02-08
- Jon Skeet's Quiz · 2013-11-03
- Perfect code and real projects · 2013-08-28
- To Add Comments or Not to Add? · 2013-08-28
- Unexpected area to collect garbage in .NET · 2013-08-08
- Unobviousness in use of C# closures · 2013-08-07
- Wrapping C# class for use in COM · 2013-06-03