Hi.
Try this:
beta_results[beta_results$instrument%in%instru, ]
and see help page ?"%in%"
Hope this helps
Andrija
On Thu, Jun 20, 2013 at 12:45 PM, Katherine Gobin <katherine_go...@yahoo.com
> wrote:
> Dear R Forum
>
> I have a data frame as
>
> beta_results = data.frame(instrument = c("ABC", "DEF", "JKL", "LMN",
> "PQR", "STU", "UVW", "XYZ"),
>
> beta_values = c(1.27, -0.22, 0.529, 0.011, 2.31, -1.08, -2.7, 0.42))
>
> > beta_results
> instrument beta_values
> 1 ABC 1.270
> 2 DEF -0.220
> 3 JKL 0.529
> 4 LMN 0.011
> 5 PQR 2.310
> 6 STU -1.080
> 7 UVW -2.700
> 8 XYZ 0.420
>
>
> Through some other process, I am getting instrument names as say (which
> may change each time I run this process
> and hence I can't hard code it).
>
>
> instru = c("JKL", "STU", "XYZ")
>
> Now I want the subset of beta_results, (say beta_results_A) pertaining to
> only instru i.e
>
> beta_results_A =
>
>
> instrument beta_values
> 3 JKL 0.529
> 6 STU -1.080
> 8 XYZ 0.420
>
>
> I did try
>
> beta_results_A = beta_results[instru]
> or
> beta_results_A = subset(beta_results, beta_results$instrument = instru]
>
> but I guess it's failing.
>
> Kindly guide
>
> Regards
>
> Katherine
> [[alternative HTML version deleted]]
>
>
> ______________________________________________
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>
>
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