Loading multiple datafiles into MATLAB and plotting a colourmap

Hi,

I have x data and y data for each value of z data. That is for each z-value I create a xy plot. I want to import all the xy plots for each z value to the matlab, remove the outliers in the xy plot for each z-value, and plot a colourmap with x-axis being the x-values and y-axis being the z-values and y being the colour intensity.

Can someone please help me in this ?

Thanks in advance.

[Rohit Kulkarni]

Do you want to do something similar to this: https://in.mathworks.com/matlabcentral/answers/363065-plot-3d-colormap ?

Answer 1

[Constantino Carlos Reyes-Aldasoro]

In Matlab, the command "colormap" corresponds to the color/colours that are assigned to the intensity of a figure. You display 2D data with intensity values coded as colour with "imagesc" as well as other commands, for example:

[x,y]=meshgrid(1:10,1:10);
imagesc(x)
colormap(hot)

and

imagesc(y)
colormap(bone)

Different to imagesc and colours you can also display meshes, surfaces or many other options, and still can use colours:

mesh(x);colormap jet

surf(y)

Hope this helps you solve your problem