The function format() might serve your needs.

> format(head(iris), digits=1)
  Sepal.Length Sepal.Width Petal.Length Petal.Width Species
1            5           4            1         0.2  setosa
2            5           3            1         0.2  setosa
3            5           3            1         0.2  setosa
4            5           3            2         0.2  setosa
5            5           4            1         0.2  setosa
6            5           4            2         0.4  setosa

Jean

`·.,,  ><(((º>   `·.,,  ><(((º>   `·.,,  ><(((º>

Jean V. Adams
Statistician
U.S. Geological Survey
Great Lakes Science Center
223 East Steinfest Road
Antigo, WI 54409  USA



From:
Liviu Andronic <landronimirc@gmail.com>
To:
"r-help@r-project.org Help" <r-help@r-project.org>
Date:
08/10/2011 04:37 AM
Subject:
[R] round() a data frame containing 'character' variables?
Sent by:
r-help-bounces@r-project.org



Dear all
It is difficult to use round(..., digits=2) on a data frame since one
has to first take care to remove non-numeric variables such as
'character' or 'factor':
> head(round(iris, 2))
Error in Math.data.frame(list(Sepal.Length = c(5.1, 4.9, 4.7, 4.6, 5,  :
  non-numeric variable in data frame: Species
> head(round(iris[1:4], 2))
  Sepal.Length Sepal.Width Petal.Length Petal.Width
1          5.1         3.5          1.4         0.2
2          4.9         3.0          1.4         0.2
3          4.7         3.2          1.3         0.2
4          4.6         3.1          1.5         0.2
5          5.0         3.6          1.4         0.2
6          5.4         3.9          1.7         0.4

Is there an elegant way to use round() on a data frame containing
'character' variables without removing them? Thank you
Liviu



-- 
Do you know how to read?
http://www.alienetworks.com/srtest.cfm
http://goodies.xfce.org/projects/applications/xfce4-dict#speed-reader
Do you know how to write?
http://garbl.home.comcast.net/~garbl/stylemanual/e.htm#e-mail

______________________________________________
R-help@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.



	[[alternative HTML version deleted]]

