How to avoid displaying zero-values in confusion matrix

Question

I plotted a confusion matrix in Matlab using the code from this link.

However whenever there is a zero on the cell it is still shown. How can I eliminate the printing of

Answer 1

does this work - do a loop over i and j (spatial dimensions) after textStrings is defined and before it is converted to cell, and set

textStrings(i,j,1:4)='    ';

depending on if mat(i,j) is really close to 0.00 using an if-else statement