Another neat way is: with(DF, foo(x, w))
HTH, Andy > -----Original Message----- > From: peter leonard [mailto:[EMAIL PROTECTED] > Sent: Sunday, June 08, 2003 4:35 PM > To: [EMAIL PROTECTED] > Subject: [R] Basic question on applying a function to each row of a > dataframe > > > Hi, > > I have a function foo(x,y) and a dataframe, DF, comprised of > two vectors, x > & w, as follows : > > x w > 1 1 1 > 2 2 1 > 3 3 1 > 4 4 1 > > etc > > > I would like to apply the function foo to each 'pair' within DF e.g > foo(1,1), foo(2,1), foo(3,1) etc > > I have tried > > >apply(DF,foo) > >apply(DF[,],foo) > >apply(DF[DF$x,DF$w],foo) > > > However, none of the above worked. Can anyone help ? > > Thanks in advance, > Peter > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > ------------------------------------------------------------------------------ Notice: This e-mail message, together with any attachments, cont... {{dropped}} ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help