search for: assay1

Hello, In my code I found something that looks like an anomaly, I found a reproducible example in which I am just trying to compare each row in a data frame against the first row: a<-data.frame(row=c("B","C","B"),column=c(2,2,10),assay=c("Assay1","Assay1","Assay1"),plate=c(1,1,1),stringsAsFactors=FALSE) apply(a[1:2,],1,function(x) { all(x==a[1,]) }) apply(a[1:3,],1,function(x) { all(x==a[1,]) }) > > 1 2 TRUE FALSE > 1 2 3 FALSE FALSE FALSE > The second result is not right, it shoul...