search for: jjmat

...oup! I asked write.table to change the decimal point from "." to "," , but apparently it would only do so if the object to be written does not contain any character elements. I would like to understand, why this has to be so and - of course - find a solution for my matrix object jjmat, that I tried to write out by write.table(jjmat, file="jjmat.txt", row.names=TRUE, col.names=NA,sep="\t",dec=",") I also tried "options(OutDec=",")" , which changes the presentation on the console, but seems to have no influence on write ta...

I'm not sure if the following is a bug or a feature: > jjmat <- array(1:6, c(2,3), list(c('ABC', 'DEF'), c('xyz', 'tuv', 'qrs'))) > jjdf <- as.data.frame(jjmat) > jjmat['AB', ] Error: subscript out of bounds > jjdf['AB',] xyz tuv qrs ABC 1 3 5 > jjmat[, 'tu'] Err...