How to add std to heatmap cell?

I need to add std to the heatmap so that instead of showing 68.64 in the below heatmap, it shows 68.64 plus or minus STD.

[Sugar Daddy]

like what

68.46 ± 0.2

or any of the below value

68.64
68.26

[Adam Danz]

In heatmap plots, cells contain scalar numeric values. To show two values or to show a value +/- value, you would need to replace the numeric scalars with strings or character arrays or numeric vectors. That isn't possible.

The best you can do is to

1. Overlay a 2nd axes (see this answer for a demo)
2. Use the text() function to write the std to each cell.

I would offer a demo in the answers section but you don't accept answers very frequently which is a demotivator.

[Zeynab Mousavikhamene]

Thanks Adam I would try your solutions. I am surprised how you came to the conclusion that I dont accept answers very frequently. I suggest you check the questions I asked and number of "accepted answers".

[Adam Danz]

162 answered, 83 accepted. That's 51% which isn't too bad.

I'd be happy to help if you get stuck implementing my suggestion or any other solutions to the problem.

[Zeynab Mousavikhamene]

Some of the answers were not really answer to what I was was asked. Thank for the help.

[Adam Danz]

VIDHYA GANESAN's answer moved here as a comment.

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Hi,

Did you get answer for your question?

I have a similar problem where in I need to plot heatmap with its standard deviation.

I tried to create another axis to overlay on the heatmap. But it did not work fine.

Could you please share how you resolved this query?

Thanks

Vidhya

[Adam Danz]

@VIDHYA GANESAN, heatmaps are difficult to customize. One alternative is to use imagesc instead. Here's a demo showing how achieve that and how to change the labels.