Hi, the following Code demonstrates an possibly Error in R (or you can explain me, why this happens, thanks in advance)
Code: ##################################### testClass <- function( stackData= c()) { list( write= function( ...) { sChain= "" for( s in c( stackData, ...)) { sChain= paste( sChain, '"', sub( '"', '\\\\"', s), '"', sep, sep='') } write( sChain, fHandle, append=TRUE) }, stackIt1 = function( ...) { testClass( stackData= c( stackData, ...)) }, stackIt2 = function( ...) { tmp= c( stackData, ...) testClass( stackData= tmp) }, getStack = function() { stackData }, NULL ) } to1= testClass() for( i in 4:2) { to1= to1$stackIt1( i) } print( all( rep( 2, 3) == to1$getStack())) # error! to2= testClass() for( i in 4:2) { to2= to2$stackIt2( i) } print( all( 4:2 == to2$getStack())) # correct! # what ist the difference between stackIt1 and stackIt2? # (error appears only by using an for loop) " > version _ platform i486-pc-linux-gnu arch i486 os linux-gnu system i486, linux-gnu status major 2 minor 12.1 year 2010 month 12 day 16 svn rev 53855 language R version.string R version 2.12.1 (2010-12-16) Regards " ##################################### End of Code written in an R-File and called per source( '<Fname>.R') shows 2 subsequent outputs of 'TRUE', which is not ok in my mind Thanks for your attention ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.