chi2stat - Chi-square mean and variance
Syntax
[M,V] = chi2stat(NU)
Description
[M,V] = chi2stat(NU) returns
the mean of and variance for the chi-square distribution with degrees
of freedom parameters specified by NU.
The mean of the chi-square distribution is ν,
the degrees of freedom parameter, and the variance is 2ν.
Examples
nu = 1:10;
nu = nu'*nu;
[m,v] = chi2stat(nu)
m =
1 2 3 4 5 6 7 8 9 10
2 4 6 8 10 12 14 16 18 20
3 6 9 12 15 18 21 24 27 30
4 8 12 16 20 24 28 32 36 40
5 10 15 20 25 30 35 40 45 50
6 12 18 24 30 36 42 48 54 60
7 14 21 28 35 42 49 56 63 70
8 16 24 32 40 48 56 64 72 80
9 18 27 36 45 54 63 72 81 90
10 20 30 40 50 60 70 80 90 100
v =
2 4 6 8 10 12 14 16 18 20
4 8 12 16 20 24 28 32 36 40
6 12 18 24 30 36 42 48 54 60
8 16 24 32 40 48 56 64 72 80
10 20 30 40 50 60 70 80 90 100
12 24 36 48 60 72 84 96 108 120
14 28 42 56 70 84 98 112 126 140
16 32 48 64 80 96 112 128 144 160
18 36 54 72 90 108 126 144 162 180
20 40 60 80 100 120 140 160 180 200
See Also
chi2cdf | chi2inv | chi2pdf | chi2rnd
How To
 | chi2rnd | | children (classregtree) |  |
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