On 19/11/2010 9:59 AM, Santosh Srinivas wrote:
Hello group,
I have a data frame called test.df with a bunch of columns.
When I do a print(test.df), I want the numbers to appear a pre-defined
setting.
I believe this can be achieved by sprintf but this needs to be done
individually for the data.
However, is there an option that I can set so that all numerical values
default to comma separated, 2 decimal places when they appear?
No, there's no global option with that level of flexibility. You can
set options("digits"), but you won't get the commas.
You should probably write your own function to do this. For example,
myformat <- function(x, big.mark=",", scientific = FALSE, nsmall=2, ...) {
format.data.frame(x, big.mark=big.mark, scientific=scientific,
nsmall=2, ...)
}
and then print(myformat(df)) should give what you want. It is possible
to replace the print.data.frame and format.data.frame functions with new
ones, but that's probably not advisable.
Duncan Murdoch
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