[R] Basic question ( too broad for help topics).

[Ista Zahn]

Hi Jim,

out_df <- my_df[ my_df$STREP %in% my_num, c("COUNTY", "FIPS", "STSEN",
"STREP", "PREC")]

should do the trick. See

?match

for details.

On Thu, Oct 29, 2009 at 1:53 AM, Jim Burke <j.burke at earthlink.net> wrote:
> I have searched help topics but don't know exactly what to search for.
> Need to use my_num to find any matching STREPs in my_df
>
> my_num <-
> c("101","102","103","104","105","107","108","112","113","114","115")
>
> ## "my_df" has 8,000 different STREPS in it.
>
> ##  I have a statement where I can select ONE item from data frame "my_df"
> out_df <- my_df[ my_df$STREP=="101", c("COUNTY", "FIPS", "STSEN", "STREP",
> "PREC")]
>
> ## A comparative SQL command
> ## SELECT
> ## COUNTY, FIPS, STSEN, STREP, PREC
> ## FROM my_df
> ## WHERE my_df.STREP
> IN("101","102","103","104","105","107","108","112","113","114","115")
> ## ORDER BY STREP;
>
> Thanks for any help,
> Jim
>
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>



-- 
Ista Zahn
Graduate student
University of Rochester
Department of Clinical and Social Psychology
http://yourpsyche.org