Recomendation on plotting data

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Jaime de la Mota
Jaime de la Mota 2017-5-17
评论： Walter Roberson 2017-5-18
I have a 360x180 matrix with data for each latitude and longitude on earth, I plot it like this:
imagescnan(loni,lati,squeeze(double(r4_sat(:,:)))')
I have another matrix with the same dimensions but only data on the points in which it is significative; I want to mark the locations on the map plotted earlier in which the data is significative but I don't know how.
Any sugestion helps Thanks for reading
  1 个评论
Walter Roberson
Walter Roberson 2017-5-18
Note:
imagescnan(loni,lati,squeeze(double(r4_sat(:,:)))')
should be the same as
imagescnan( loni, lati, double(r4_sat).' )

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回答（1 个）

Walter Roberson
Walter Roberson 2017-5-18
imagescnan( loni, lati, double(r4_sat).' );
hold on
threshold = 0.05; %for example
mask = double(r4_sat > threshold); %was it significant?
mask(mask == 0) = nan; %1 if significant, nan if not
imagescnan( loni, lati, mask.' );
  2 个评论
Jaime de la Mota
Jaime de la Mota 2017-5-18
I'm afraid the code doesn't work; I have tried using
quiver(lati, loni, r4_sat_significative, r4_sat_significative)
but it fails too, seems like it has dimensions problems
Walter Roberson
Walter Roberson 2017-5-18
Please show size(loni), size(lati), size(r4_sat), size(r4_sat_significative), class(r4_sat_significative), max(r4_sat_significative(:))

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