Hi all,
I wonder if I can create indexes for columns in a data frame to speed up data
selection by matching column values, just like indexes for large tables in a
relational database? Thank you!
xiagao1982
2011-05-19
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
