[Rd] minor typo in by.Rd (PR#7211)

deepayan at stat.wisc.edu deepayan at stat.wisc.edu
Mon Sep 6 06:20:35 CEST 2004

src/library/base/man/by.Rd has 

\item{INDICES}{a factor or a list of factors, each of 
   length \code{nrow(x)}.}
\item{FUN}{a function to be applied to data frame 
   subsets of \code{x}.}

'x' should be 'data' in both.

Also, in 

  A data frame is split by row into data frames
  subsetted by the values of one or more factors, and function
  \code{FUN} is applied to each subset in term.

the last word was probably meant to be 'turn'.


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