Re: [R] How to dynamically add variables to a dataframe

Like this? > V <- c("fee","fie","foe") > aq <- head(airquality) # Just to get a shorter example > aq[V] <- 0 > aq Ozone Solar.R Wind Temp Month Day fee fie foe 141 190 7.4 67 5 1 0 0 0 236 118 8.0 72 5 2 0 0 0 312 149 12.6 74 5 3 0

Re: [R] How to dynamically add variables to a dataframe

Another option is d0[paste0("V", 1:nrow(d1))] <- 0 --Ista On Sun, Apr 22, 2018 at 4:23 AM, Eric Berger wrote: > Hi Luca, > How about this? > > # create some dummy data since I don't have your d0 or d1 >> n <- 3 >> d0 <- data.frame(a=runif(5),b=runif(5)) > > # here's the suggested code >> d1 <-

Re: [R] How to dynamically add variables to a dataframe

Hi Luca, How about this? # create some dummy data since I don't have your d0 or d1 > n <- 3 > d0 <- data.frame(a=runif(5),b=runif(5)) # here's the suggested code > d1 <- cbind(d0, matrix(0,nrow(d0),n)) > colnames(d1)[1:n + ncol(d0)] <- paste("V",1:n,sep="") HTH, Eric On Sun, Apr 22, 2018 at 1

[R] How to dynamically add variables to a dataframe

Hi, I am a bit rusty with R programming and do not seem to find a solution to add a number of variables to my existing dataframe. Basically I need to add n=dim(d1)[1] variables to my d0 dataframe and I would like them to be named V1, V2, V3, ... , V[dim(d1)[1]) When running the following code: f