Re: [R] reading of a matrix

From: Petr PIKAL <petr.pikal_at_precheza.cz>
Date: Thu 05 Apr 2007 - 11:01:42 GMT


Hi

r-help-bounces@stat.math.ethz.ch napsal dne 05.04.2007 12:50:09:

> Dear R-experts,
>
> I still have problems with the reading of a matrix.
>
> Input: matrixData6.txt
>
> A-Paar B-Paar C-Paar D-Paar E-Paar
> A 1 3 5 7 9
> B 2 4 6 8 10
>
>
> R-commands:
> y=read.table(file="Z:/Software/R-Programme/matrixData6.txt")
> y
>
> Result:
> A.Paar B.Paar C.Paar D.Paar E.Paar
> A 1 3 5 7 9
> B 2 4 6 8 10
>
>
> If you look into the txt-file you can recognize that the column names
> are not the same. Why?
>
> If I add in the txt-file the line "MyData:" infront of all followed by a
> newline. The R-command as above response an error. How can I read the
> modified input and get the following result:
>
> MyData:
>
> A.Paar B.Paar C.Paar D.Paar E.Paar
> A 1 3 5 7 9
> B 2 4 6 8 10

The only difference I can see is centering columns and Mydata: row. This does not have anything with reading your data. You shall instead consult how your data is printed on console by looking at ?print help page. However I think that R itself is not the best tool for text formating.

>
> Another stupid question might be hows can I change the column and row
> names after I made "read.table"? I want to have the following result,
> for example:
>
> MyData:
>
> G H I J K
> M 1 3 5 7 9
> N 2 4 6 8 10
>
> I studied all manuals I could find and the help but could not understand
> the examples or interpret it right for my case.

Did you by chance try
?names or ?rownames

Regards
Petr

>
> Thanks for help,
>
> Corinna
>
> ______________________________________________
> R-help@stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.



R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Thu Apr 05 21:14:03 2007

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.1.8, at Thu 05 Apr 2007 - 11:30:46 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.