r - fread (data.table) locks files -
i have used fread
data.table
package , when try modify or delete file (just open notepad) windows says:
how can unlock binding?
edit:
trying in r gives same
cat(file="c:/users/mcarrie/desktop/test/test2.txt") error in file(file, ifelse(append, "a", "w")) : cannot open connection in addition: warning message: in file(file, ifelse(append, "a", "w")) : cannot open file 'c:/users/mcarrie/desktop/test/test2.txt': permission denied
info:
> sessioninfo() r version 3.0.1 (2013-05-16) platform: x86_64-w64-mingw32/x64 (64-bit) locale: [1] lc_collate=english_united kingdom.1252 lc_ctype=english_united kingdom.1252 [3] lc_monetary=english_united kingdom.1252 lc_numeric=c [5] lc_time=english_united kingdom.1252 attached base packages: [1] stats graphics grdevices utils datasets methods base other attached packages: [1] data.table_1.8.8 loaded via namespace (and not attached): [1] tools_3.0.1 > showconnections(all=t) description class mode text isopen can read can write 0 "stdin" "terminal" "r" "text" "opened" "yes" "no" 1 "stdout" "terminal" "w" "text" "opened" "no" "yes" 2 "stderr" "terminal" "w" "text" "opened" "no" "yes"
file being read: (missing quote put on purpose)
"aa",3,4,5,"w" "ss,2,3,4,"s" "ww",2,3,3,"s"
please retry data.table v1.8.11. there's new .zip windows on data.table homepage.
from news :
if fread returns data error (such unbalanced quotes on particular line) closes file first rather holding lock open, windows problem. nigmastar reporting , carl witthoft hint. tests added.
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