a remove question
On Jan 16, 2011, at 4:08 PM, Erin Hodgess wrote:
Dear R People: I have the following:
ls(pattern="NY*")
[1] "CRAN_df" "CRAN_df0" "CRAN_df1" "CRAN_mat" "CRAN_sp" [6] "CRAN_spdf1" "CRAN_spdf2" "CRAN_spdf4" "delauney_NY" "dist2_NY" [11] "dist3_NY" "Gabriel_NY" "NY8a_nb" "rel_neigh_NY" "scot_BNG" [16] "SOI_NY"
rm(pattern="NY*")
Warning message: In rm(pattern = "NY*") : object 'NY*' not found
How do I remove all of NY* items, please? I suspect it might be an sapply issue thanks,
Perhaps:
rm(list= ls()[grep("NY", ls()] )
If there is a pattern argument to rm (I haven't looked) then it's
possible that it would have succeeded with pattern="NY", assuming you
want any object name with "NY" someplace in it. The "*" looks wrong
for grepping. ".+" would have looked more greppish, but its not really
needed.
Erin -- Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: erinm.hodgess at gmail.com
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