How can I change the values of the axis to use values from a vector instead of matrix position

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Pedro Alejandro Garza Juarez 2017-4-8

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https://ww2.mathworks.cn/matlabcentral/answers/334299-how-can-i-change-the-values-of-the-axis-to-use-values-from-a-vector-instead-of-matrix-position

评论： Star Strider 2017-4-8

I have a plot in imagesc where I want it to use the values of the original vector instead of the position value of the matrix, i.e. the range of the vector I used originally is 200 (-10:0.1:10) and I want to use those instead of the position 1:200. From this

to this

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Answer 1

Star Strider 2017-4-8

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Use the get and set functions to get the ticks, then relabel them:

xt = get(gca, 'XTick');
yt = get(gca, 'YTick');
xtix = linspace(-10, 10, length(xt));
ytix = linspace(-10, 10, length(yt));
set(gca, 'XTick',xt,'XTickLabel',xtix, 'YTick',yt,'YTickLabel',ytix)