[R] named character question

[R. Michael Weylandt]

It's best if you make these things available to us using dput() in the future.

You're probably looking for the substr() function.

Since _strings_ (not characters) in R are "primitive" (Not in the
primitive/internal sense: just in the primordial sense) you can't
subset them with the brackets operators: what you're doing is
something closer to

x <- 1:5

x[30: 35]

Cheers,
Michael

On Sun, Aug 12, 2012 at 10:33 PM, Erin Hodgess <erinm.hodgess at gmail.com> wrote:
> Dear R People:
>
> Here is a goofy question:
>
> I want to extract the zip code from an address and here is my work so far:
>
>> add1
>                   results.formatted_address
> "200 W Rosamond St, Houston, TX 77076, USA"
>> add1[1][32:36]
> <NA> <NA> <NA> <NA> <NA>
>   NA   NA   NA   NA   NA
>> str(add1)
>  Named chr "200 W Rosamond St, Houston, TX 77076, USA"
>  - attr(*, "names")= chr "results.formatted_address"
>>
>
> What am I not seeing, please?
>
> Thanks,
> Erin
>
>
> --
> Erin Hodgess
> Associate Professor
> Department of Computer and Mathematical Sciences
> University of Houston - Downtown
> mailto: erinm.hodgess at gmail.com
>
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