Re: [R] macro in a loop

data.year[j] <- read.table(paste("c:/data/",year[j],".csv",sep=''),header=T,sep=",") should do it. Le Wang wrote: Hi there, Thanks for your time in advance. I am trying to read in multiple files. For example, data.1940 <- read.table("c:/data/1940.csv",header=TRUE,sep=",") data.1950 <-

Re: [R] Merging

Is this what you want it to do ('n' is the original data frame)? > n v V1 V2 V3 V4 1 k a 2 1 2 2 l b 1 2 1 3 m c 2 1 2 4 n d 1 2 1 5 o e 2 1 2 > n1 <- n[,3:5] > n2 <- duplicated(n1) > n3 <- n[!n2,] > n3 v V1 V2 V3 V4 1 k a 2 1 2 2 l b 1 2 1 Pankaj Tammy Ma wrote: