[R] Split rownames into factors
Bill.Venables at csiro.au
Bill.Venables at csiro.au
Tue Jul 28 08:21:17 CEST 2009
?substring
Bill Venables
http://www.cmis.csiro.au/bill.venables/
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of jimdare
Sent: Tuesday, 28 July 2009 8:10 AM
To: r-help at r-project.org
Subject: [R] Split rownames into factors
Hi Guys,
I was wondering how you would go about solving the following problem:
I have a list where the grouping information is in the row names.
Rowname [,1]
X1Jan08 324
X1Jun08 65
X1Dec08 543
X2Jan08 23
X2Jun08 54
X2Dec08 8765
X3Jan08 213
X3Jun08 43
X3Dec08 65
How can I create the following dataframe:
Value Date Group
[1,] 324 Jan 08 X1
[2,] 65 Jun 08 X1
[3,] 543 Dec 08 X1
etc.................
Thanks for your help!
James
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