How to remove a specific class in the confusion matrix?

Hi,

I have a confusion matrix that can be generated by the code below with attached mat-file.

figure; cm = confusionchart([trueCellR{:}],[testCellR{:}],'RowSummary','row-normalized','ColumnSummary','column-normalized');

I want to remove the class of "n/a" in both confusion matrix and generated figure.

Besides, how can I change the order of the classes in the figure?

Thank you very much,

Answer 1

[Voss]

load testCells

x = removecats([trueCellR{:}],'n/a');
y = removecats([testCellR{:}],'n/a');

x = reordercats(x,[3 2 1]);

figure; cm = confusionchart(x,y,'RowSummary','row-normalized','ColumnSummary','column-normalized');

[Mibang]

Verified, perfect! Thanks a lot, expert!

[Voss]

You're welcome!

[Mibang]

Do you know how to change a class name, e.g., A to PAC? Thanks.

[Voss]

See renamecats:

https://www.mathworks.com/help/matlab/ref/categorical.renamecats.html

[Mibang]

Great, thanks again!!

[Voss]

You're welcome!