Re: [R] split character string in matrix into character vector and numeric vector

From: Christos Hatzis <christos.hatzis_at_nuverabio.com>
Date: Wed, 21 May 2008 13:26:53 -0400

> x <- "B03_MAH 0.2115 0.2087 0.2087 0.2147 0.2115 0.2176"
> strsplit(x, " +")
[[1]]
[1] "B03_MAH" "0.2115" "0.2087" "0.2087" "0.2147" "0.2115" "0.2176" -Christos

> -----Original Message-----
> From: r-help-bounces_at_r-project.org
> [mailto:r-help-bounces_at_r-project.org] On Behalf Of Kim Milferstedt
> Sent: Wednesday, May 21, 2008 1:11 PM
> To: r-help_at_stat.math.ethz.ch
> Subject: [R] split character string in matrix into character
> vector and numeric vector
>
> Hello,
>
> I've got a matrix consisting of one column with n rows. Each
> field in the matrix is filled with a character vector.
>
> I would like to convert this matrix into a character vector
> containing the B03_MAH-type entries from the beginning of
> each row and a data.frame that contains the numeric data, but
> I am stuck.
>
> I have tried to use textConnection with sep = " " but since
> there is sometimes more than two spaces separating the
> entries, I obtain a result with columns full of NAs.
>
> Then I tried sub() to replace the all multi-spaces to get
> only one space that separates each entry but that didn't work either.
>
> Do you know a good way to convert this matrix?
>
> Thanks already,
>
> Kim
>
> taxa.vec "B03_MAH 0.2115 0.2087 0.2087 0.2147 0.2115 0.2176"
> taxa.vec "F02_SSBH 0.2162 0.2191 0.2133 0.2130 0.2220 0.2158"
> taxa.vec "G04_MAH 0.2083 0.2111 0.2055 0.2115 0.2140 0.2087"
> taxa.vec "A04_MAH 0.2097 0.2126 0.2069 0.2065 0.2097 0.2037"
> taxa.vec "E03_MAH 0.2097 0.2069 0.2069 0.2130 0.2155 0.2101"
>
> ______________________________________________
> R-help_at_r-project.org 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_at_r-project.org 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 Wed 21 May 2008 - 18:08:40 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Wed 21 May 2008 - 18:30:39 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.

list of date sections of archive