On Wed, Feb 25, 2009 at 01:19:36PM -0800, Pele wrote:
>
> Hi R users,
>
> I have a data frame that contains 10K obs and 200 variables
> where I am trying to format the numeric columns to look
> like the output table below (format to 2 decimal places) but I am
> having no luck.. Can someone tell me the best way to
> accomplist this?
format() will do tht for you:
> foo <- data.frame(a=rnorm(10), b=rnorm(10))
> format(foo, digits=1)
a b
1 -0.12 1.28
2 -0.21 -0.46
3 0.09 0.45
4 -0.58 -0.88
5 -0.04 -0.20
6 0.03 -0.43
7 0.65 -1.53
8 0.39 0.81
9 0.69 0.09
10 -0.61 -1.15
Note that here we got 2 instead of the requested 1 significant digit
because that would have set some values to 0.0. More in the manual
page.
cu
Philipp
--
Dr. Philipp Pagel
Lehrstuhl für Genomorientierte Bioinformatik
Technische Universität München
Wissenschaftszentrum Weihenstephan
85350 Freising, Germany
http://mips.gsf.de/staff/pagel
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