MATLAB: Y axis lable values are not in ascending order

heatmap

Hi everyone,

I have a matrix p, 255 x 255. I used this matrix to get heatmap. Int that map X axis lalbes are in ascending oerder but Y axis valuse are descending order.

I need both axis lables in ascending order.I will put code on here and attached my heatmap.

I will really appriciate if anyone can help on this issue. Thank you.

h = heatmap(p,'colormap',summer);

Best Answer

Plot it using this

heatmap(1:size(p,1), size(p,2):-1:1, p,'colormap',summer);

Alternative:

h = heatmap(p,'colormap',summer);
h.YDisplayLabels = flipud(h.YDisplayLabels);

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%h = heatmap(__,'ColorLimits',[0 10])

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Starting in R2019a, heatmaps interpret text using TeX markup instead of displaying the literal characters. Therefore it seems you are using a release earlier than R2019a. Therefore, upgrading to the latest release might help!

For displaying "xlable values as yearly (1971,1972,...)" use the code below

close all; clc;
tbl = readtable('heatmapTest.xlsx');
t1 = datetime(1971,1,1);t2 = datetime(1986,12,1);
t = t1:calmonths(1):t2;t= t(:);
xlabels = string(datestr(t,10));
xlabels = char(xlabels);
xlabels = cellstr(xlabels);
ylabels = {'A_b' 'B_b' 'C_b' 'D_b'};
cdata = tbl{:,2:5};
h = heatmap(cdata');
h.XDisplayLabels = xlabels;
h.YDisplayLabels = ylabels;
idx = [true;diff(year(t))] ~=0;
h.XDisplayLabels(~idx) = {''};

Best Answer

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