Hi everyone,
I read your messages and I tried some things out.
The Data2 is filled with NA.
So what I did was:
NameFile.csv$Data2[is.na(NameFile.csv$Data2)] = log2Values
And now it worked. :)
Seems like I needed to replace it, and not only write it.
Thanks.
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>> -Original Message-
>> From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
>> project.org] On Behalf Of Yellow
>> Sent: Thursday, April 12, 2012 2:18 AM
>> To: r-help@r-project.org
>> Subject: [R] How insert data to a column in existing csv file?
>&
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
> project.org] On Behalf Of Yellow
> Sent: Thursday, April 12, 2012 2:18 AM
> To: r-help@r-project.org
> Subject: [R] How insert data to a column in existing csv file?
>
> I was
On Apr 12, 2012, at 5:18 AM, Yellow wrote:
I was working with some excel files with a lot of data.
And by hand it is impossible to handle them.
So they are now converted to .csv.
With headers above the columns, like:
Data1, Data2, Data3
But now I needed to calculate the log2 value of Data1 an
Hi,
You can use write.table with Append = TRUE to keep on writing in the same
csv file, but I don't know how to write in an specific cell of your csv
file.
http://stat.ethz.ch/R-manual/R-devel/library/utils/html/write.table.html
write.table (data, file = "example.csv", sep = ";", col.names = NA,
I was working with some excel files with a lot of data.
And by hand it is impossible to handle them.
So they are now converted to .csv.
With headers above the columns, like:
Data1, Data2, Data3
But now I needed to calculate the log2 value of Data1 and place the result
under Data2.
I can't
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