[R] evaluate a set of symbols within an IF statement

Greg Snow Greg.Snow at imail.org
Sat Sep 26 23:19:25 CEST 2009


?any

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of zubin
> Sent: Friday, September 25, 2009 6:00 PM
> To: r-help at r-project.org
> Subject: [R] evaluate a set of symbols within an IF statement
> 
> Hello, writing some R code to cleanse a data set, if the following set
> of symbols are identified then perform some actions.  trying to write
> the minimum code to do this.
> 
> 
> tname = "VIX"
> checkticker = c("VIX", "TYX", "TNX", "IRX")
> 
>     if (tname == checkticker) {
>         //perform some operations
>     }
> 
> result i get is
> 
>  > tname == checkticker
> [1]  TRUE FALSE FALSE FALSE
> 
> how do i evaluate this whole list to a single boolean True or False?
> If
> any of these are true the whole statement is True, else False.   this
> only seems to work for the first ticker, the rest don't perform the
> operations within the loop.
> 
> 
>  > tname = "IRX"
>  > tname == checkticker
> [1] FALSE FALSE FALSE  TRUE
> 
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> and provide commented, minimal, self-contained, reproducible code.




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