Let me try this again. Here are the links I forgot. My apologies.
http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example
and http://adv-r.had.co.nz/Reproducibility.html
John Kane
Kingston ON Canada
> -----Original Message-----
> From: jrkrideau at inbox.com
> Sent: Mon, 1 Jun 2015 06:29:41 -0800
> To: wht_crl at yahoo.com, r-help at r-project.org
> Subject: RE: [R] merge function
>
> As Burt says it is not exactly clear what you want but is something like
> this what you are looking for?
>
> dat1 <- data.frame(aa = c("a", "b",
"c"), bb = 1:3)
> dat2 <- data.frame(xx = c("b", "c",
"d"), yy = 3:1)
> merge(dat1, dat2, by.x = "aa", by.y = "xx")
>
> For further reference here are some suggestions about asking questions on
> the R-help list. In particular it is very helpful if data is supplied in
> dput() form (See ?dput for details)
>
> John Kane
> Kingston ON Canada
>
>
>> -----Original Message-----
>> From: r-help at r-project.org
>> Sent: Mon, 1 Jun 2015 13:46:15 +0000 (UTC)
>> To: r-help at r-project.org
>> Subject: [R] merge function
>>
>> Hi,By default the merge function should take the intersection of column
>> names (if this is understood from by = intersect(names(x), names(y)),
>> but
>> it takes all columns. How to specify the intersection of column names?
>> ?Thanks
>> Carol
>>
>> [[alternative HTML version deleted]]
>>
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>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>
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