[R] Beginner: how to split up character string into different columns

[Peter Alspach]

Tena koe Jessie

Lots of ways of doing this.  Perhaps the easiest, if your data is formatted as you suggest, is to use substring; e.g., substring(yourData$Sample, 1, 4) should give you the sites.

Otherwise, you might need to investigate regular expressions.

HTH .....

Peter Alspach

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of jmcable
Sent: Tuesday, 18 March 2014 10:13 a.m.
To: r-help at r-project.org
Subject: [R] Beginner: how to split up character string into different columns

Hello,
I'm an R beginner and am not sure how to address this question. I've read through tutorials and am still stuck.

I have a column in my data called "Sample". The samples are listed as four sites (SFHS, SFLS, NFLS, NFHS) with tree numbers (01 through 23) and replicates per tree (A and B). So, a typical sample name would look like:
SFLS01A or SFHS05B.  

I need to split this column into three columns (site, tree, and rep), but I can't figure this out. Does someone have advice / suggestions?

Thanks so much! Jessie



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