[R] numerics only

Tony Plate tplate at blackmesacapital.com
Mon Nov 11 21:59:37 CET 2002


 > x <- 
 > sapply(x, is.numeric)
     a     b     c     d
 > sapply(x, mode)
           a           b           c           d
   "numeric" "character"   "numeric"   "numeric"
 > sapply(x, storage.mode)
           a           b           c           d
   "integer" "character"   "integer"    "double"
 > sapply(x, class)
[1] "factor"

[1] "AsIs"



 > sapply(x, data.class)
         a         b         c         d
  "factor"    "AsIs" "numeric" "numeric"

At 03:27 PM 11/11/2002 -0500, Blew, Ted wrote:
>is there a way to identify the *numeric* data elements (columns) in a
>data.frame that contains both numeric and character data elements?  thanks
>in advance, ted.
>Ted Blew
>Educational Testing Service
>MS 22T
>Princeton NJ 08541
>tblew at ets.org
>609.734.5976 (office)
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