[R] R not recognizing words

[Nutter, Benjamin]

I've developed a preference for 

x$y %in% "Low"

when subsetting.  

  Benjamin Nutter |  Biostatistician     |  Quantitative Health Sciences
  Cleveland Clinic    |  9500 Euclid Ave.  |  Cleveland, OH 44195  | (216) 445-1365


-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of arabarkev
Sent: Friday, January 06, 2012 12:20 AM
To: r-help at r-project.org
Subject: [R] R not recognizing words

Hello all

I'm new to R and am experiencing a problem with a categorical variable.  All the data of this variable are "Low", "High", or NA.  When I put summary(x$y), it gives me the number of High, Low, and NA entries.  However,
when I try to subset by writing     x$y=="Low"  or x$y=="High", R does not
recognize the word and it writes FALSE for all the entries (but not the NA entries). 

Can anybody help me out?

Thanks
 



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