Creating a heatmap of area from two equal matrices

I have two equal matrices which represent values of 'phase' and 'speed' where each value represents an equal area of a grid.

How would I create a heatmap to show (%) of total area with one matrix on the x and one matrix on the y?

Thanks.

Answer 1

[Muskan]

As per my understanding, we can follow the following steps:

1) Each matrix’s values should be normalised so that they fall between 0 and 1. We can use “mat2gray()” function for this.

2) The “hist3()” function can be used to produce a 2D histogram from the two matrices. A bivariate histogram is produced by this function with a predetermined number of bins in each dimension.

3)Convert the counts in the histogram to percentages of the entire area.

4) Use the “imagesc()” function to create a heatmap of the percentage of data.