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How to do this temporal plot

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Elliot Jenkins
Elliot Jenkins on 20 Jan 2023
Commented: Chris on 27 Jan 2023
HI,
I have time series data for a parameter for multiple sites like this graph shows. What function do I use? Also, I like making a table of data in excel and then importing it into the script so how is it best to format the table? Thanks

Accepted Answer

Chris
Chris on 20 Jan 2023
Edited: Chris on 27 Jan 2023
Here's one way.
For importing data, perhaps something like data=transpose(readmatrix('filename.xlsx',Range','A2:N2002'));
Empty cells should be imported as NaNs then.
% Generate fake data
data = 2*rand(14,120);
for idx = 1:14
data(idx,1:randi(70)) = nan;
end
% Plot it, beginning at year 1901
xx = 1900+[1:size(data,2)];
interestingPlot(xx,data)
function interestingPlot(xx,data)
yy = 1:size(data,1);
f = pcolor(xx,yy,data);
shading flat
colorbar
% Shift the bins
f.XData = f.XData-.5;
f.YData = f.YData-.5;
ax = gca;
% Shift the axes
ax.XLim = ax.XLim-.5;
ax.YLim = ax.YLim-.5;
% Flip the y axis
ax.YDir = 'reverse';
xlabel('Date')
ylabel('Site')
colormap (flipud(hot))
end
  2 Comments
Elliot Jenkins
Elliot Jenkins on 25 Jan 2023
Thank you so much!
Chris
Chris on 27 Jan 2023
No problem. I edited the code to turn it into a function, in case you need to generate this kind of plot often.

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