Hi, May be this helps: #You can use ?read.csv() to read the two files. set.seed(24) dat1<- as.data.frame(matrix(sample(20:40,40,replace=TRUE),ncol=4)) set.seed(285) dat2<- as.data.frame(matrix(sample(35:60,40,replace=TRUE),ncol=4)) sapply(colnames(dat1),function(i) t.test(dat1[,i],dat2[,i],paired=TRUE)$p.value) # V1 V2 V3 V4 #3.202629e-05 6.510644e-04 6.215225e-04 3.044760e-04
A.K. Hi I am fairly new to R so if this is a stupid question please forgive me. I have a CSV file with multiple parameters (50). I have another CSV file with the same parameters after treatment. Is there a way I can read these two files into R and do multiple paired T-test as all the parameters are in the same columns in each file? Thanks in advance ______________________________________________ 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.
