search for: rgenmetvl

Displaying 1 result from an estimated 1 matches for "rgenmetvl".

2009 May 02
1
value labes Stata vs factors
Dear Sir/Madam, I converted my Stata Rgenmetvl.dta file with read.dta succesfully in R's Rgenmetvl.Rdata. However, factors give problem in certain calculations, e.g.: > mean(Rgenmetvl$sex) [1] NA Warning message: In mean.default(Rgenmetvl$sex) : argument is not numeric or logical: returning NA What can I do? In addition to means, sum...