0
10
20
30
40
50
60
70
x
Silverman
0
10
20
30
40
50
60
70
x
Scott
0
10
20
30
40
50
60
70
x
Biased cross-validation
0
10
20
30
40
50
60
70
x
Unbiased cross-validation
0
10
20
30
40
50
60
70
x
Sheather & Jones
0
10
20
30
40
50
60
70
x
Manual (bandwidth = 1)
0
10
20
30
40
50
60
70
x
Silverman
0
10
20
30
40
50
60
70
x
Scott
0
10
20
30
40
50
60
70
x
Biased cross-validation
0
10
20
30
40
50
60
70
x
Unbiased cross-validation
0
10
20
30
40
50
60
70
x
Sheather & Jones
0
10
20
30
40
50
60
70
x
Manual (bandwidth = 1)