how to plot correlation matrix shown by colored circles?

2022 5 30
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更新时间：2022 5 30
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Chunru
Chunru 2022-5-30
Ran in:

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Ran in:
% Generate R
n= 6;
r = magic(n);
r = triu(r);
r(r==0) = NaN
r = 6×6
35 1 6 26 19 24 NaN 32 7 21 23 25 NaN NaN 2 22 27 20 NaN NaN NaN 17 10 15 NaN NaN NaN NaN 14 16 NaN NaN NaN NaN NaN 11
% Plotting
[xx, yy] = meshgrid(1:n, 1:n);
scatter(xx, yy, r*20, 'filled');
set(gca, 'YDir', 'reverse');
colorbar
axis off
% use text to annotate

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