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Hoe to resample matrices to test for the robustness of their correlation

camilleislande 
Hello 
I have several populations where I have morphology and diet for each
individual. I am interested in the correlation between diet and
morphological distances. However the number of individuals in each
population ranges from 22 to 80 individuals. I have looked at the
correlation diet-morphology for each population and (not surprisingly) the
correlation coefficientis is highly correlated with the number of
individuals per population. 

I would like to resample (without replacement) the populations with 60-80
individuals and get random samplings of  30 individuals (1000 times). I
would like to get a correlation coefficient distribution against which to
test the original value of the correlation. 

I guess it is possible do this, however I have never written a script in R
and I am not familiar with resampling techniques at all. Any help with
coding will be greatly appreciated 

Thank you

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Thread (3 messages)

camilleislande Hoe to resample matrices to test for the robustness of their correlation Feb 17 chuck.01 How to resample matrices to test for the robustness of their correlation Feb 17 camilleislande How to resample matrices to test for the robustness of their correlation Feb 20