makedist gives error when applied to Gamma distribution

Hello,

I get the following error using makedist('Gamma','a',number 1,'b',number 2)

"Error using makedist (line X)

Distribution name 'Gamma' is unrecognized."

Any idea what is going on? Thanks

[Walter Roberson]

Which release are you using?

As a work-around, try using 'gamma' instead of 'Gamma'

[Cristian Martinez]

I tried both Matlab R2016b and R2017a. I tried 'gamma' with the same results :(

Thank you for your response

[Walter Roberson]

I will install R2016b locally to test. While we are waiting on that, please show

which -all makedist

[Walter Roberson]

Works for me when I test in R2016b.

[Cristian Martinez]

Thank you, I have no idea how but it is working again. Puzzling.

For what is worth I get /Applications/MATLAB_R2016b.app/toolbox/shared/statslib/makedist.m

[Mustafa Vural]

Is there a makedist solution for a 3 parameter weibull distribution?

It only exists for a 2 parameter weibull distribution...

[Twinkle Bhavsar]

Hello!

I am getting an error as "Distribution name 'nakagami' is unrecognized." while running the line "

pd = makedist('nakagami','mu',msr1,'omega',omg);

I have installed version R2021a.

Please help!!!!

[Walter Roberson]

msr1 = randn;
omg = rand;
pd = makedist('nakagami','mu',msr1,'omega',omg)

pd = 
  NakagamiDistribution

  Nakagami distribution
       mu = 0.508601
    omega = 0.689648

Seems to work for me in R2021a. It needs the Statistics and Machine Learning Toolbox.

There appears to be another makedist() from Simulink Design Optimization Toolbox that does not support that distribution; https://www.mathworks.com/help/sldo/ref/makedist.html

[Fabio]

I had the same issue with R2022b. Installing the Statistics and Machine Learning Toolbox add-on solved it.