Output as NaN using pearsrnd command ?

Pearsrnd is used for generating random samples of pearson distribtuion ?

mu = 4.9603;
Sigma = 1.1161;
Skew = -0.5666
kurt = -1.1129
r = pearsrnd(mu,Sigma,Skew,kurt,2000,1)

This command is showing NaN as output can anyone please help me with this,

Is it possible to get random samples for the log pearson type III distribution if I use logarithmic data parameters instead of actual data parameters?

Answer 1

[Walter Roberson]

According to the doc

"Some combinations of moments are not valid; in particular, the kurtosis must be greater than the square of the skewness plus 1."

However that is not the case for your kurt -- negative kurtosis is not greater than the square of any real value.

[Thamasha Samarasinghe]

then do you know how to solve this? because I have the same problem in my data set.