> On Apr 16, 2016, at 6:30 AM, peter dalgaard <pda...@gmail.com> wrote:
>
> Check the string matching functions, e.g. grepl().
Concretely:
merge3[, grepl( "Email|Email\\.x", names(merge3) ) ] # since "." is special in
grepisch patterns.
Which admittedly is a bit redundant since any character value that included
`Email.x" would already have been picked up by the "Email" alternative.
>
> -pd
>
>> On 16 Apr 2016, at 15:18 , Dan Abner <dan.abne...@gmail.com> wrote:
>>
>> Hi all,
>>
>> I want to select all variables in the data.frame with a name that
>> includes are certain string. Something like the following:
>>
>> merge3[,names(merge3) %in% c("Email","Email.x")]
>>
>> But there are too many variations on the Email variable names to list them
>> all.
>>
>> Can anyone advise?
>>
>> Thanks!
>>
>> Dan
>>
>
David Winsemius
Alameda, CA, USA
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