Tagged Questions
0
votes
0answers
39 views
Taking the cube root before a correlation when comparing quantities usually bellonging to a skewed distribution?
I was trying to reconcile data the other day just by looking at the cross correlation to see how well it lines up and it was suggested to me that I first apply a cube root transformation given the ...
1
vote
1answer
205 views
Percentile Ranks in Matlab
I have 2 vectors of raw values. I need to do a percentile rank correlation and an ordinal rank correlation between them in Matlab.
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6
votes
1answer
1k views
Why use logged variables?
Probably, this is a very basic question but I don't seem to be able to find a solid answer for it. I hope here, I can.
I'm currently reading papers as a preparation for my own master's thesis. ...
1
vote
0answers
368 views
Weibull distributed data for correlation analysis
On visual inspection of P-P plots, my time data appears to fit a Weibull distribution better than a normal distribution. I will use the variable for correlations and as a predictor in regression. In ...
6
votes
1answer
135 views
Why is my replication of Silver & Dunlap 1987 not working out?
I'm trying to replicate Silver & Dunlap (1987). I'm just comparing averaging correlations or averaging z transform correlations and back transforming. I seem to not be replicating the asymmetry ...
4
votes
1answer
213 views
Manually transforming two dependent variables according to their correlation matrix in R?
I have two continuous variables, X and Y, that are correlated - they are not independent. To correct for non-independence, I have a known correlation structure, a matrix S.
If one calls ...
