How to plot correlation coefficient matrix plot?

I want to plot a correlation coefficient matrix plot and I want to show the values at each individual box as shown in the picture. I have my my calculated correlation coeff values.

Answer 1

[Adam Danz]

Assuming you already have the correlation matrix, use heatmap. The upper triangle can be filled with NaNs.

S = load('Data_Canada');
r = corr(S.Data)

r = 5×5

1.0000 0.9266 0.7401 0.7287 0.7136 0.9266 1.0000 0.5908 0.5716 0.5556 0.7401 0.5908 1.0000 0.9758 0.9384 0.7287 0.5716 0.9758 1.0000 0.9861 0.7136 0.5556 0.9384 0.9861 1.0000

% Replace upper triangle with NaNs
isupper = logical(triu(ones(size(r)),1));
r(isupper) = NaN

r = 5×5

1.0000 NaN NaN NaN NaN 0.9266 1.0000 NaN NaN NaN 0.7401 0.5908 1.0000 NaN NaN 0.7287 0.5716 0.9758 1.0000 NaN 0.7136 0.5556 0.9384 0.9861 1.0000

% Plot results
h = heatmap(r,'MissingDataColor','w');
labels = ["wt","hp","xy","ad","tt"];
h.XDisplayLabels = labels;
h.YDisplayLabels = labels; 

[Roja Eliza]

Thanks a lot..works fine. just one query I want to reverse the colour from depper shade to lighter which I cannt seem to edit in the property inspector. It only takes pre defined colour schemes

[Adam Danz]

Flip the colormap using flipud

 h.Colormap = flipud(h.Colormap);

where h is the heatmap object.