Re: [R] NA when using read.csv

From: Gabor Grothendieck <>
Date: Tue 02 Aug 2005 - 08:05:11 EST

On 8/1/05, Haibo Huang <> wrote:
> Hi, when I used:
> Dist=read.csv("test.csv",header=TRUE)
> to read data from CSV file. For some cells, R
> mistakenly put in as NA, while most of the cells still

Its not likely that there are errors in this software so its probably not a mistake but some other cause.

> appears to be right, and there is no error message in
> R. I am pretty sure the csv file is all right, but
> just can't figure out what went wrong. Can someone
> share your thoughts with me? Thanks!

Read the posting guide at the bottom of each post. In particular, cut down the input file to a few lines that still exhibit the problem in order to provide a reproducible example.

As an aside note that 'header = TRUE' is the default in read.csv (but not on read.table) so you don't need to specify it. mailing list PLEASE do read the posting guide! Received on Tue Aug 02 08:09:01 2005

This archive was generated by hypermail 2.1.8 : Fri 03 Mar 2006 - 03:39:38 EST