search for: sigmahat

Here's one possibility, assuming muhat and sigmahat are estimtes of mu and sigma from N iid draws of N(mu, sigma^2): tStat <- abs(x - muhat) / sigmahat pValue <- pt(tStat, df=N, lower=TRUE) I'm not quite sure what df tStat should have (exercise for math stat), but given fairly large N, that should make little difference. Andy > From...

Hi, I'm wanting to call R from Perl via the RSPerl package. However I cannot seem to install it on my Macbook (OS X Tiger - R 2.6 - Perl 5.8.6). I try to install the source downloaded from the sigmahat website - but it seems to fail - when I search my system for R.pm - I can't find it? Something looks to be going wrong with the make bits? Cheers David M ---- $ R CMD INSTALL --configure-args='--with-in-perl' RSPerl* * Installing to library '/Library/Frameworks/R.framework/Reso...