I guess the easiest solution for me would therefore be to set
options(digits) to a high number, and then round down if I need to!
Thanks you both for your input!
Ivan
Le 1/28/2010 17:02, Peter Ehlers a écrit :
Looks like I didn't read your post carefully enough.
If you want some sort of global option to set the
display of numbers from any operation performed by R
then that's not likely to be possible without
capturing all output and formatting it yourself.
As the saying goes 'good luck with that'.
Note that options(digits=..) won't give you the
requested number of digits in all parts of, say,
print(t.test(x,y)).
-Peter Ehlers
Peter Ehlers wrote:
Ivan Calandra wrote:
It looks to me that it does more or less the same as format().
Maybe I didn't explain myself correctly then. I would like to set
the number of decimal by default, for the whole R session, like I do
with options(digits=6). Except that digits sets up the number of
digits (including what is before the "."). I'm looking for some
option that will let me set the number of digits AFTER the "."
Example: I have 102.33556677 and 2.999555666
If I set the number of decimal to 6, I should get: 102.335567 and
2.999556.
And that for all numbers that will be in/output from R (read.table,
write.table, statistic tests, etc)
Or is it that I didn't understand everything about formatC() and
sprintf()?
You didn't:
formatC(x, digits=6, format="f")
[1] "102.335567" "2.999556"
sprintf("%12.6f", x)
[1] " 102.335567" " 2.999556"
-Peter Ehlers
>
Thanks again
Ivan
Le 1/28/2010 15:12, Peter Ehlers a écrit :
?formatC
?sprintf
Ivan Calandra wrote:
Hi everybody,
I'm trying to set the number of decimals (i.e. the number of
digits after the "."). I looked into options but I can only set
the total number of digits, with options(digits=6). But since I
have different variables with different order of magnitude, I
would like that they're all displayed with the same number of
decimals.
I searched for it and found the format() function, with nsmall=6,
but it is for a given vector. I would like to set it for the whole
session, as with options.
Can anyone help me?
Thanks in advance
Ivan
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