I forgot to say I need it to work in a for loop because it will be used for over 35 files. I previously programmed it in the most unorthodox way possible:
setwd("J:/Stage/Datasets2/Datasets/outData") data1<-read.table("AR1000900A_N_241110_(Mapping250K_Nsp)_2,Mapping250K_Nsp,CNprobes.tab _SNP_IDs.xls",sep="\t", dec=",", fill=T, header=T) bukuA<-read.table("AR1000900A_N_241110_(Mapping250K_Nsp)_2,Mapping250K_Nsp,CNprobes.tab _SNP_IDs.xls _0,5 -0,51.xls", sep="\t", dec=",", fill=T, header=T) bukuB<-read.table("AR1000901A_N_241110_(Mapping250K_Nsp),Mapping250K_Nsp,CNprobes.tab _SNP_IDs.xls _0,5 -0,51.xls", sep="\t", dec=",", fill=T, header=T) bukuC<-read.table("AR1000902A_N_241110_(Mapping250K_Nsp),Mapping250K_Nsp,CNprobes.tab _SNP_IDs.xls _0,5 -0,51.xls", sep="\t", dec=",", fill=T, header=T) bukuD<-read.table("AR1000903A_N_291110_(Mapping250K_Nsp),Mapping250K_Nsp,CNprobes.tab _SNP_IDs.xls _0,5 -0,51.xls", sep="\t", dec=",", fill=T, header=T) bukuE<-read.table("AR1000904A_N_241110_(Mapping250K_Nsp),Mapping250K_Nsp,CNprobes.tab _SNP_IDs.xls _0,5 -0,51.xls", sep="\t", dec=",", fill=T, header=T) bukuA<-data.frame(bukuA) bukuB<-data.frame(bukuB) bukuC<-data.frame(bukuC) bukuD<-data.frame(bukuD) bukuE<-data.frame(bukuE) regionMatchA<-cbind(data1, bukuA[match(data1$Pos, bukuA$Pos),]) regionMatchB<-cbind(data1, bukuB[match(data1$Pos, bukuB$Pos),]) regionMatchC<-cbind(data1, bukuC[match(data1$Pos, bukuC$Pos),]) regionMatchD<-cbind(data1, bukuD[match(data1$Pos, bukuD$Pos),]) regionMatchE<-cbind(data1, bukuE[match(data1$Pos, bukuE$Pos),]) regionMatchABCDE<-cbind(data1[,7],data1[,3], regionMatchA[,10:18],regionMatchB[,10:18],regionMatchC[,10:18],regionMatchD[,10:18],regionMatchE[,10:18]) write.table(regionMatchABCDE, file= "Array0-1-2-3-4-5_0,5 -0,5.xls", append=F, col.names=T, row.names=F, quote=F, sep = "\t", dec=",") -- View this message in context: http://r.789695.n4.nabble.com/appending-collums-in-for-loop-tp3393446p3393481.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.