trouble with data.matrix
Dear all, The following causes me trouble:
a <- data.frame(2:5,3:6,4:7) str(a)
`data.frame': 4 obs. of 3 variables: $ X2.5: int 2 3 4 5 $ X3.6: int 3 4 5 6 $ X4.7: int 4 5 6 7
str(data.matrix(a))
int [1:4, 1:3] 2 3 4 5 3 4 5 6 4 5 ... - attr(*, "dimnames")=List of 2 ..$ : chr [1:4] "1" "2" "3" "4" ..$ : chr [1:3] "X2.5" "X3.6" "X4.7" Reading the man page for 'data.matrix' trends to indicate it generates a numerical matrix from a data.frame. ... or am I wrong ? (I could almost swear it was working before... but like always the question turns to be 'before what ?' =) ). Any hint would be greatly appreciated ...Oups, I almost forget: I use R-1.3.1 compiled on a linux box with Suse 7.1 Laurent
Laurent Gautier CBS, Building 208, DTU PhD. Student D-2800 Lyngby,Denmark tel: +45 45 25 24 85 http://www.cbs.dtu.dk/laurent -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._