how I can get data from plot

Hi Everyone,

I am new in Matlab. I try to find probability density function for gamma and weibull distribution (discharge values). I did gamma distrubution, but I would like to show weibull distrubution on the same graph. Can you please help me how and where I have to write the command for weibull distrubution?

I also want to find when Y (Exceedence Probability) is 0.1 or any value, what is the X (Discharge) value using Matlab. Thank you in advance.

Here is my code

clc
clear all
close all
Data = xlsread('ocak.xlsx',2);
discharge= Data(:,1);
par=gamfit(discharge); % Calculates shape and scale parameters
%par=wblfit(discharge);
alpha=par(1); % Shape factor
beta=par(2); % scale factor
n=length(discharge); % Data number
p=(1:1:n)/(n+1); % Empirical probability calculation
scatter(sort(discharge),1-p,'k*')
title('January D13A085-Salmancayi')
xlabel('Discharge (m^3/s)')
ylabel('Exceedence probability')
grid on
box on
hold on
Dmin=min(discharge); % En küçük debi deðeri
Dmax=max(discharge); % En büyük debi deðeri
DA=Dmin:0.01:Dmax;   % Veri deðiþim aralýðý
pt=gamcdf(DA,alpha,beta); % Teorik ihtimal deðerleri
%pt=wblcdf(DA,alpha,beta);
hold on
plot(DA,1-pt,'r')
text(2*Dmin,0.9*Dmax,['Alpha = ', num2str(alpha),'     Beta = ' num2str(beta)])

Answer 1

[Ennio Condoleo]

    open('yourfigure.fig');
        h = gcf; %current figure handle
        axesObjs = get(h, 'Children');  %axes handles
        dataObjs = get(axesObjs, 'Children'); %handles to low-level graphics objects in axes
        objTypes = get(dataObjs, 'Type');  %type of low-level graphics object
        xdata = get(dataObjs, 'XData');  %data from low-level grahics objects
        ydata = get(dataObjs, 'YData');
        zdata = get(dataObjs, 'ZData');

[Enis BALTACI]

Thank you for your help.