greater than 1. If is one, the mean does not exist.
greater than 2, is 
.
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| tstat | Examples |
Mean and variance for the Student's t distribution.
Syntax
[M,V] = tstat(NU)
Description
For the Student's t distribution with parameter,:
greater than 1. If is one, the mean does not exist.
greater than 2, is .
Examples
The mean and variance for 1 to 30 degrees of freedom.[m,v] = tstat(reshape(1:30,6,5))
m =
NaN 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
v =
NaN 1.4000 1.1818 1.1176 1.0870
NaN 1.3333 1.1667 1.1111 1.0833
3.0000 1.2857 1.1538 1.1053 1.0800
2.0000 1.2500 1.1429 1.1000 1.0769
1.6667 1.2222 1.1333 1.0952 1.0741
1.5000 1.2000 1.1250 1.0909 1.0714
Note that the variance does not exist for one and two degrees of freedom.