Mauricio Cardeal wrote: > Hi all > > # I have this data set and how can I assign NA´s in just one command ?
is.na(dat[dat==9]) <- TRUE > And why the summary(dat) function preserves the value 9 as real. ? > Because you have not changed the contents of dat at all, only the contents of x,y,z, and w. Uwe Ligges > x <- c(1,2,3,9,4) > y <- c(3,6,9,2,3) > z <- c(9,9,2,2,8) > w <- c(6,5,3,0,9) > > dat <- cbind(x,y,z,w) > summary(dat) > > x[x==9] <- NA > y[y==9] <- NA > z[z==9] <- NA > w[w==9] <- NA > > summary(dat) > summary(x) > summary(y) > summary(z) > summary(w) > > Thank you all, > Mauricio > > ______________________________________________ > R-help@stat.math.ethz.ch 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. ______________________________________________ R-help@stat.math.ethz.ch 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.