Worked like a champ.
Thank you.
Neil
On Jul 2, 2009, at 9:20 AM, Henrique Dallazuanna wrote:
> Try this:
>
> c("mary", "sue") %in% c("mary", "bob", "danny", "sue","jane")
>
> On Thu, Jul 2, 2009 at 11:13 AM, Neil Tiffin <ne...@neiltiffin.com>
> wrote:
> As an R beginner, I feel brain dead today as I can not find the
> answer to a relatively simple question.
>
> Given a array of string values, for example lets say "mary", "bob",
> "danny", "sue", and "jane".
>
> I am trying to determine how to perform a logical test to determine
> if a variable is an exact match for one of the string values in the
> array when the number of strings in the array is variable and
> without using a for loop and without comparing each value.
> Considering the power of R, I thought this would be easy, but its
> not obvious to me.
>
> Now I may not yet be one with the R fu so a bit more context.
>
> I have a data frame that contains a column with text values. What I
> am trying to do is use the subset function on the data frame to
> select only data for "sue" or "jane" (for example.) But maybe I
> have not taken the correct approach?
>
> So obviously I could do something like the following.
>
> subset( data_frame, name = "sue" | name == "jane", select = c(name,
> age, birthdate))
>
> However, my subset needs to be much more than 2 and being lazy I do
> not want to type "| name == "some text" for each one.
>
> Is there an other way?
>
> Neil
>
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