On 07/23/2012 11:49 AM, David Terk wrote:
One quick question regarding a call to as.character.POSIXt. When using scan, since scan reads line by line, would it make sense to have the ability to perform a char -> POSIXct conversion on each line that is read, rather than after all lines have been read? Perhaps this already exists somewhere and I am not aware of it.
It's actually much faster to load everything into memory and then convert it all to xts at once. as.POSIXct will work on a vector to create your index, this s better than calling it millions of times, once for each row.
-- Brian ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
