- statistics: [m, v] = betastat (a, b)
Compute mean and variance of the beta distribution.
Arguments
-
a is the first parameter of the beta distribution. a must be
positive
-
b is the second parameter of the beta distribution. b must be
positive
a and b must be of common size or one of them must be scalar
Return values
-
m is the mean of the beta distribution
-
v is the variance of the beta distribution
Examples
| a = 1:6;
b = 1:0.2:2;
[m, v] = betastat (a, b)
[m, v] = betastat (a, 1.5)
|
References
-
Wendy L. Martinez and Angel R. Martinez. Computational Statistics
Handbook with MATLAB. Appendix E, pages 547-557, Chapman & Hall/CRC,
2001.
-
Athanasios Papoulis. Probability, Random Variables, and Stochastic
Processes. McGraw-Hill, New York, second edition, 1984.
Source Code:
betastat