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Remove data labels in a heatmap

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Dora Velcsov
Dora Velcsov 2019-11-1
编辑： Md Nazmul Anam 2023-12-13
I am using a heatmap containing a grid of 1000x1000 points. The data values are displayed on the x and y axis, which is too much; they overlap since there are too many. I would like to remove all data and keep only the xlabel, ylable, and title with a larger font size. I am not sure how to change the font size either. I tried several things without luck.
Here is my command where "a" is the 1000x1000 matrix.
heatmap(a,'xlabel','\mu','ylabel','\nu','title',['Frequency of (\mu, \nu) for ','\epsilon = ',num2str(epsilon)]);
Thank you.

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采纳的回答

Star Strider
Star Strider 2019-11-1
If you just want to remove them, try this:
hmh = heatmap(a,'xlabel','\mu','ylabel','\nu','title',sprintf('Frequency of (\\mu, \\nu) for \\epsilon = %.2f',epsilon));
Ax = gca;
Ax.XDisplayLabels = nan(size(Ax.XDisplayData));
Ax.YDisplayLabels = nan(size(Ax.YDisplayData));
They don’t appear to have any properties specific to them (such as 'FontSize') that you can change.
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显示 1更早的评论
Yogev Hadad
Yogev Hadad 2023-6-8
Sorry for the late answer ( New user, for the benefit of future questioners):
You can use the following parameter:
heatmap(....,'CellLabelColor','none');
Works like a charm...
Godd luck!

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更多回答（3 个）

Shipra Jain
Shipra Jain 2020-4-29
Hi,
Is there a way to show only some selective labels on Yaxis?
E.g. I have about 120 labels from 1970-2090. I would like only 1970, 1980, 1990....2090 to appear and switch off the other ones. Is that possible?
Thanks in advance.
Deepali Kushwaha
Deepali Kushwaha 2023-6-8
To remove all xlabel, ylabel and tickslabel:
heatmap(arr,'CellLabelColor','none')
In case you want to retain all labels except xticklabel:
heatmap(arr,'XDisplayLabels',NaN*ones(length(arr),1))
  1 个评论
Md Nazmul Anam
Md Nazmul Anam 2023-12-13
编辑：Md Nazmul Anam 2023-12-13
Thanks a lot! This is the only solution out of 10s at least which solved the issue without messing something else in my plot!

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Pingsheng Ren
Pingsheng Ren 2020-12-17
Ax.CellLabelColor='none';

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