Re: [R] alternative to matching/merge?

From: Lana Schaffer <>
Date: Mon, 16 Jun 2008 16:36:54 -0700

Is it possible to do a,d.frame) with a list like using lapply(data,func,args)?
I have not successfully executed this.

-----Original Message-----
From: hadley wickham [] Sent: Friday, June 13, 2008 2:54 PM
To: jim holtman
Cc: Lana Schaffer;
Subject: Re: [R] alternative to matching/merge?

On Fri, Jun 13, 2008 at 11:45 AM, jim holtman <> wrote:
> What is the structure of 'd.frame' and 'segFile'? Run Rprof so that
> we can see which of the functions it is spending its time in. What
> happens if x$index is not in seqFile$index? Are the values in the
> 'index' unique in both structures? Subsetting a data frame can be
> expensive when compared to using a matrix. Could you use a matrix
> instead of a data frame; are all the columns the same mode? Again
> either a subset of data would be helpful or an 'str' on the data
> objects being used so that we can understand what they are.

A few other ideas to try:



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Received on Mon 16 Jun 2008 - 23:58:22 GMT

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