[R] Large p, small n. Impossible to calculate the p-value
rromero3000
rromero3000 at gmail.com
Fri Sep 4 16:21:55 CEST 2009
Hello,
I have I problem and I hope someone can help me.
I have a data set with 66 variables and 30 values for each variable. I need
to calculate the Pearson correlation and the p-values among variables. I
have the “large p, small n” problem so I used a shrinkage process to obtain
the r values. My problem is that I can’t calculate the p-values because the
degree of freedom of the t-student distribution is: df=30-66-1, It is
negative and the t-student distribution is not defined for negative degrees
of freedom. Is there some way to calculate the p-value in the “large p,
small n” problem?
Thank you all in advance.
--
View this message in context: http://www.nabble.com/Large-p%2C-small-n.-Impossible-to-calculate-the-p-value-tp25295288p25295288.html
Sent from the R help mailing list archive at Nabble.com.
More information about the R-help
mailing list