Can we convert graph to matrix or an array in matlab? -

i have plotted graph values text file , given data. there function convert graph or extract data graph's x , y axis end values.

if handle h plot can recover original data:

h = plot(x,y); x_recovered = get(h,'xdata'); y_recovered = get(h,'ydata'); 

if didn't handle can click right on plot , write command

h = gco; 

to obtain handle h (this replaces first line above)