[R] NA when using read.csv

Wuming Gong wuming.gong at gmail.com
Tue Aug 2 03:39:13 CEST 2005


Hi Haibo,

Are there any character "#" in the cells? By default, the things at
the right side of the character "#" will be masked as comments.

Wuming

On 8/2/05, Gabor Grothendieck <ggrothendieck at gmail.com> wrote:
> On 8/1/05, Haibo Huang <edhuang00 at yahoo.com> 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.
> 
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