Hi, It is not clear which OS you are using. Most probably, the "Directory" column would be "factor". table1<- read.table(text=" ID Directory 1 /home/arunksa111/Documents 2 /home/arunksa111/Trial 3 ~/Trial1 4 ~Trial2 ",sep="",header=TRUE,stringsAsFactors=FALSE)
setwd(table1$Directory[2]) getwd() #[1] "/home/arunksa111/Trial" setwd(table1$Directory[1]) getwd() #[1] "/home/arunksa111/Documents" T2<- subset(table1,ID==3) setwd(T2$Directory) getwd() #[1] "/home/arunksa111/Trial1" T3<-subset(table1,ID==4) setwd(T3$Directory) #Error in setwd(T3$Directory) : cannot change working directory #The error is different here. #Now using stringsAsFactors=TRUE table1<- read.table(text=" ID Directory 1 /home/arunksa111/Documents 2 /home/arunksa111/Trial 3 ~/Trial1 4 ~Trial2 ",sep="",header=TRUE,stringsAsFactors=TRUE) setwd(table1$Directory[2]) #Error in setwd(table1$Directory[2]) : character argument expected T2<- subset(table1,ID==3) setwd(T2$Directory) #Error in setwd(T2$Directory) : character argument expected T3<-subset(table1,ID==4) setwd(T3$Directory) #Error in setwd(T3$Directory) : character argument expected setwd(as.character(T3$Directory)) #path is not correct #Error in setwd(as.character(T3$Directory)) : # cannot change working directory setwd(as.character(T2$Directory)) getwd() #[1] "/home/arunksa111/Trial1" sessionInfo() R version 3.0.1 (2013-05-16) Platform: x86_64-unknown-linux-gnu (64-bit) A.K. Hello, I have a CSV file that summarises different working directories. I would like to write a script to be able to access the different directories. CSV "table" file: ID directory 1 "~Documents/16_06_13" 2 "~Documents/18_06_13" 3 "~Documents/19_06_13" ... I tried by sub setting the "table.csv" file: T1 <- subset(table, table$ID== "1") setwd(T1$directory) but it gives me the following error: Error in setwd(T1$directory) : character argument expected can someone help me to solve this problem? Thank you very much Stefano ______________________________________________ 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.
