How to apply a ttest for specific months?

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HA
HA 2019-7-12
回答： Sai Sri Pathuri 2019-7-17
Hello,
I have a large matrix of 2520x192x144, (month x lon x lat). I would like to do a ttest to compare each year with the same month (ttest of year1 Jan, year2 Jan...... year210Jan) for each month (end result = 12 192x144 matrices).
What would be the best way to set this up?
Thank you,
Holly

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Sai Sri Pathuri
Sai Sri Pathuri 2019-7-17
Hi,
Let the large matrix of dimensions 2520x192x144 be ‘A’. To compare data related to a month for all years, the data is to be separated based on months and t-test is perfomed on each.
month_data=A(month_number:12:2520,:,:);
h=ttest(month_data);
For Example,
January_data=A(1:12:2520,:,:);
January_test=ttest(January_data);
This produces a matrix of dimension 1x192x144. Thus all months give 12 matrices.

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