How can I plot the multiple probability plot for weibull distribution with same shape parameter, but different scale parameter?

Hi, I am wondering how can I plot the multiple weibull data into one big probability plot

to show that each data have weibull distribution with same shape parameter, but different scale?

suppose

A = wblrnd(1/2 1/2 [1 5]

B = wblrnd(5 1/2 [1 5])

and use probplot or wblplot command to show that this two data have similar distribution.

picture is one of examples from the minitab, and i am trying to show the similar things.

Thank you

Answer 1

[Birdman]

wblplot(A);hold on;grid on;wblplot(B)

Use hold on command.

[ChinUk]

Thank you for your answer, but the problem is that using this command also shows estimated line with different shape parameter like below image

. Is anyway that shows that same estimated line like minitab example i showed?

[Birdman]

Well, I can only modify the code to the following:

wblplot(A);hold on;grid on;wblplot(B);legend('A(scale=0.5)','B(scale=5)')

Answer 2

[Daniil Khakhulin]

Try using

probplot (y);

instead of multiple wblplots

It would look something like that

probplot ('weibull', [A B]);

Fro further info refer to https://www.mathworks.com/help/stats/probplot.html?s_tid=srchtitle_probplot_1