how to change the XTick of heatmap?

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Rt Ro
Rt Ro 2019-12-3
评论： Ayobami Olanrewaju 2021-2-9
when I run this code I have 192 months on the x-axis.
I want to show each year (Jan1971,Jan 1972,...Dec 1986) on the x axis. if I do:
set(h,'XTick',datetime('Jan-1971'):calmonths(12):datetime('Dec-1986'));
I have this error:
Error using matlab.graphics.chart.HeatmapChart/set
The name 'XTick' is not an accessible property for an instance of class 'matlab.graphics.chart.HeatmapChart'.
could you please help me to solve the problem.
tbl = readtable('heatmap.test.xlsx');
t1 = datetime(1971,1,1);t2 = datetime(1986,12,1);
t = t1:calmonths(1):t2;t= t(:);
xlabels = string(datestr(t,12));
ylabels = {'A' 'B' 'C' 'D'};
cdata = tbl{:,2:5};
h = heatmap(xlabels,ylabels,cdata');

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采纳的回答

Adam Danz
Adam Danz 2019-12-3
编辑：Adam Danz 2019-12-3
I'm not sure what rule you were following to chose the x-ticks in your question (Jan1971,Jan 1972,...Dec 1986) but here's how to show every January. You can adapt the rule as needed.
t is your datetime vector
h is the handle to your heatmap object.
% Show every January
idx = month(t)==1; % index of datetime values to show as x tick
h.XDisplayLabels(~idx) = {''}; % replace rejected tick labels with empties
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Rt Ro
Rt Ro 2020-2-13
Thank you for your help.
it works perfectly :).
Ayobami Olanrewaju
Ayobami Olanrewaju 2021-2-9
Thank you, the XDisplayLabels and YDisplayLabels works like magic.

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更多回答（2 个）

Rt Ro
Rt Ro 2020-2-12
Thank you for your reply.
I did it but it still shows the x-axis values as monthly.
could you please help me?
Juan Fernández Blasco
Any of you did face the problem of rotating the x axis values in a heatmap?
I am trying the following:
h2 = heatmap(tsT,stress_attributes,stress_matrix(:,1:272),'TickAngle',45);
Basically, 'TickAngle',45 because I saw it in a post, but I got this error:
The name 'TickAngle' is not an accessible property for an instance of class 'matlab.graphics.chart.HeatmapChart'.
I also tried without succeeding the following:
h2 = heatmap(tsT,stress_attributes,stress_matrix(:,1:272),[],'TickAngle',45);
  1 个评论
Adam Danz
Adam Danz 2020-4-20
编辑：Adam Danz 2020-4-21
Heatmaps are notoriously difficult to customize due to inaccessible graphics handles. A workaround is to remove the tick labels completely, overlay an invisible axes the same size as the heatmap, and add the customizable tick labels to the new axes.
Here's a demo.
If you have any problems applying the demo to your needs show me your attempt and I can help straighten things out.

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