Colormap based on amplitude of signal

Hi, want to get the colormap based on amplitude of the following ECG curve.

I have attached the .m file

I want to use colormaps of plots like this to train CNN model. Please help me out with how to write code for it.

[KSSV]

What is problem with this solution?

https://in.mathworks.com/matlabcentral/answers/529063-heatmap-of-2d-plot

You have not even acknowledged, dicussed there and asked the same question?

[meghna roy chowdhury]

Oh, I'm sorry I didn't know that you had answered there. I missed it. Apologies