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maclean
2002 Jun 11
2
Perl vs. R
...6.1 version of Perl runs it in 0.18 secs now, on my 600Mhz
Linux platform. Wondering how fast R will be in comparison.
Thanks,
John Day
FYI, here's the Perl source:
#!/local/bin/perl
# invert benchmark in Perl
# see <url:http://www.lib.uchicago.edu/keith/crisis/benchmarks/invert/
# Keith Waclena <k-waclena at uchicago.edu>
while (<STDIN>) {
chop;
($a, $b) = split(/\t/);
$B{$b} .= "\t$a"; # gotta lose leading tab later...
}
foreach $b (sort keys %B) {
# lose the leading tab with substr...
print "$b\t" . join("\t", so...