baz baz - 21 days ago 11
R Question

reading a csv file with repeated row names in R

I am trying to read a csv file with repeated row names but could not. The error message I am getting is

Error in read.table(file = file, header = header, sep = sep, quote = quote, : duplicate 'row.names' are not allowed.

The code I am using is:

S1N657 <- read.csv("S1N657.csv",header=T,fill=T,col.names=c("dam","anim","temp"))

An example of my data is given below:

did <- c("1N657","1N657","1N657","1N657","1N657","1N657","1N657","1N657","1N657","1N657")
aid <- c(101,102,103,104,105,106,107,108,109,110)
temp <- c(36,38,37,39,35,37,36,34,39,38)

data <- cbind(did,aid,temp)

Any help will be appreciated.


the function is seeing duplicate row names, so you need to deal with that. Probably the easiest way is with row.names=NULL, which will force row numbering--in other words, it treats your first column as the first dimension and not as the row numbers, and so adds row numbers (consecutive integers starting with "1".

read.csv("S1N657.csv", header=T,fill=T, col.names=c("dam","anim","temp"), row.names=NULL)