How to change the color and the fontsize in the subplots of correlation matrix by corrplot function?

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Khanh Dang 2023-1-10

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https://ww2.mathworks.cn/matlabcentral/answers/1891132-how-to-change-the-color-and-the-fontsize-in-the-subplots-of-correlation-matrix-by-corrplot-function

评论： Voss 2023-1-11

Dear friends,

Please help me how to change the fontsize and color of subplots in the correlation matrix which is plotted by corrplot function?

I need a guidance in hurry!

Thanks advance!

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Answer 1

Voss 2023-1-10

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1891132-how-to-change-the-color-and-the-fontsize-in-the-subplots-of-correlation-matrix-by-corrplot-function#answer_1145232

在 MATLAB Online 中打开

% use the third output (lines and histogram objects) from corrplot:

[~,~,h] = corrplot(randn(4,4))

h =

4×4 graphics array: Histogram Line Line Line Line Histogram Line Line Line Line Histogram Line Line Line Line Histogram

% get the parent axes of each line/histogram in h:

ax = get(h,'Parent');

% reshape to the same size as h:

ax = reshape([ax{:}],size(h))

ax =

4×4 Axes array: Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes

% set some axes properties:

set(ax(3,1),'Color','g')

set(ax(2,4),'Color','y')

set(ax(4,2),'FontSize',12)

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Voss 2023-1-10

在 MATLAB Online 中打开

% use the third output (lines and histogram objects) from corrplot:

[~,~,h] = corrplot(randn(4,4))

h =

4×4 graphics array: Histogram Line Line Line Line Histogram Line Line Line Line Histogram Line Line Line Line Histogram

% get the parent axes of each line/histogram in h:

ax = get(h,'Parent');

% reshape to the same size as h:

ax = reshape([ax{:}],size(h))

ax =

4×4 Axes array: Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes Axes

% get the histogram, line and text objects in each axes:

ch = reshape(get(ax,'Children'),size(h))

ch = 4×4 cell array

{1×1 Histogram} {3×1 Graphics } {3×1 Graphics } {3×1 Graphics } {3×1 Graphics } {1×1 Histogram} {3×1 Graphics } {3×1 Graphics } {3×1 Graphics } {3×1 Graphics } {1×1 Histogram} {3×1 Graphics } {3×1 Graphics } {3×1 Graphics } {3×1 Graphics } {1×1 Histogram}

% histogram objects:

hists = [ch{1:size(h,1)+1:end}]

hists =

1×4 Histogram array: Histogram Histogram Histogram Histogram

% line and text objects:

lt = ch(logical(~eye(size(h,1))));

lt = [lt{:}]

lt =

3×12 graphics array: Text Text Text Text Text Text Text Text Text Text Text Text Line Line Line Line Line Line Line Line Line Line Line Line Line Line Line Line Line Line Line Line Line Line Line Line

% now you can set their properties:

set(hists,'FaceColor','c')

set(lt(1,:),'FontSize',14)

val = str2double(get(lt(1,:),'String'));

idx = val <= 0;

set(lt(1,idx),'Color','r')

set(lt(1,~idx),'Color','g')

set(lt(2,idx),'Color','r')

set(lt(2,~idx),'Color','g')

set(lt(3,:),'Color','k','MarkerSize',8)

Khanh Dang 2023-1-11

Dear Voss,

That is a very wonderful solution, it helped me solve a amount of work in the short time, MATLAB user community is great! Thank you so much, Voss.

Voss 2023-1-11

You're welcome!

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How to change the color and the fontsize in the subplots of correlation matrix by corrplot function?

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How to change the color and the fontsize in the subplots of correlation matrix by corrplot function?

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