Displaying 1 result from an estimated 1 matches for "tp2316292p2316407".
2010 Aug 06
3
data.frame: return all rows where at least one...
Hi,
I know ways to do this but they all seem awkward and I somehow believe that
there is a convenient shortcut.
If I have a data.frame with many columns, how can I request all rows for which
at least one column satisfy an expression?
For instance, all rows where at least one column is negative.
Many thanks,
Werner