Help: How to plot like this ?

How to plot like the following chat

Answer 1

[Youssef Khmou]

 contour(your_data)            %  your data is M*N matrix
 colormap gray

[Xuguang]

Thank you at first

May i make that with funcition: plot & colormap ?

[Youssef Khmou]

hi,its possible but it depends on the data you have( dimensions)