Find value for a specific probability in probplot

I have several vectors containing data points. I then use

probplot(gca,vector,[],[],'noref') % and
fitdist(vector,'normal')

to plot these points and create fits for each vector. The Result looks like seen in the image.

For further purposes I now want to know for each fit at which x-value it would have a probability of 50%. (For example in this image R1's fit has a probability of 50% at x=100, U8's at x=87 etc...)

For now I used the data cursor to do this manually, does anybody have an idea how I could implement this in my code?

Answer 1

[dpb]

Use the resulting output from fitdist and then norminv...

 fd=fitdist(vector,'normal');
 p50=norminv(0.5,fd.mu,fd.sigma);

[Marco Kapfenberger]

Thanks! That's exactly what I needed.

[dpb]

I know... vbg