MATLAB Answers

T-test cutoff

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desert_scientist90
desert_scientist90 on 28 Oct 2019
Answered: Asvin Kumar on 31 Oct 2019
Hi all,
I am currently working with a data set that will be displayed on a map. After I calculated the t-value I decided that It will be better to visualize only the values that are on the above my 90% or 2.32. How can I make this cutoff on my code without using if statement? Thanks in advance.
figure (3)
h= pcolor(lon_gridded,lat_gridded,tstat);
set (h, 'Edgecolor', 'none');
hold on
plot (coastlines(:,1), coastlines(:,2))
shading flat
colormap(jet(9))
%caxis([bottom top]);
xlim([lon_start lon_end]);ylim([lat_start lat_end])

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Answers (1)

Asvin Kumar
Asvin Kumar on 31 Oct 2019
Try adding the following lines before plotting the values:
tstatMod = tstat;
tstatMod(tstat<=2.32) = NaN;
And then modify your pcolor command to:
h = pcolor(lon_gridded,lat_gridded,tstatMod);
The following articles might help you understand Logical Indexing better:

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