adding contour lines to pcolor plot

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Giulia 2023-3-21

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https://ww2.mathworks.cn/matlabcentral/answers/1932825-adding-contour-lines-to-pcolor-plot

评论： Mathieu NOE 2023-3-27

采纳的回答： Mathieu NOE

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Hi everyone,

I'm trying to add contour lines at 13 degrees to my pcolor plot, but I get the following error:

Error using contour

Input arguments must be numeric or objects which can be converted to double.

Here's my code:

t1 = datetime(2021, 5, 1)
t2 = datetime(2021, 9, 30)
dateVector = t1:t2
combinedaverages = [dailyaverages; dailyaverages06; dailyaverages07; dailyaverages08; dailyaverages09];
figure
pcolor(dateVector, depth, combinedaverages')
set(gca, 'YDir','reverse')
shading flat
ylim([0 70])
colorbar
hold on
contour(dateVector,depth,combinedaverages',[13 13],'k');

Variables in the code are:

combine averages: 153x33 double

depth: 33x1 single

dateVector: 1x153 datetime

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Adam Danz 2023-3-22

编辑：Adam Danz 2023-3-22

The data are the variables you mentioned in your question. If you save them to a mat file and attach them we can run the code in your question.

Giulia 2023-3-23

Hi Adam, thank you.

Here are my mat files:

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采纳的回答

Mathieu NOE 2023-3-24

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1932825-adding-contour-lines-to-pcolor-plot#answer_1200044

在 MATLAB Online 中打开

hello again

maybe this ?

figure
pcolor(dateVector, depth, combinedaverages')
set(gca, 'YDir','reverse')
shading flat
ylim([0 70])
colorbar
hold on
contour(1:numel(dateVector),depth,combinedaverages','k');