[R] looking for matches

Peter Alspach PAlspach at hortresearch.co.nz
Mon Nov 17 21:32:05 CET 2008


I suspect you want match (or %in%):


HTH ....

Peter Alspach

> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of Alina Sheyman
> Sent: Tuesday, 18 November 2008 9:04 a.m.
> To: r-help at r-project.org
> Subject: [R] looking for matches
> My question is probably pretty basic, but since I'm really 
> new to R, here it goes ....
>  I have two separate data frames that include class names and 
> various other information on classes. I'm trying to create a 
> match based on class names and if a match exists to create a 
> third data frame with the class name.
> I was hoping to accomplish this with sapply, but I can't 
> figure out if I can embed an "if statement" with sapply. Does 
> anyone know if that's a legit way to accomplish what I am 
> trying to do or is there some better way?
> thank you,
> Alina Sheyman
> 	[[alternative HTML version deleted]]
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