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( [id://3333]=superdoc: print w/replies, xml ) Need Help??
Perhaps something like this (You need to provide the 'distance' sub):
use strict; use warnings; my (@gsm_site, @umts_site); while (<DATA>) { my ($name1,$lon1,$lat1, $name2,$lon2,$lat2) = split /[\s"]*,["\s]*/ +, $_; next unless $lat1 and $lon1; # Avoid title lines push @gsm_site, {NAME=>$name1, LAT=>$lat1, LON=>$lon1}; push @umts_site,{NAME=>$name2, LAT=>$lat2, LON=>$lon2}; } for my $g (@gsm_site){ $g->{NEAREST} = $umts_site[0]; # Initial assumption til +l we know better $g->{DIST_TO_NEAREST} = distance($g->{LAT},$g->{LON}, $g->{NEARE +ST}{LAT},$g->{NEAREST}{LON}, "K"); for my $u (@umts_site[1..$#umts_site]){ my $this_distance = distance($g->{LAT},$g->{LON}, $u->{LAT},$ +u->{LON}, "K"); next unless $this_distance < $g->{DIST_TO_NEAREST}; $g->{NEAREST} = $u; $g->{DIST_TO_NEAREST} = $this_distance; } } # Print them out for my $g (@gsm_site){ print "$g->{NAME}, $g->{NEAREST}->{NAME}, $g->{DIST_TO_NEAREST},\n" +; } __DATA__ NameA Longitude Latitude NameB Longitude Latitude 10001_NI0001, 36.79887354, -1.26122956, " WL3762", 34.52328889 , -1.00 +7941667 NI0006, 36.86998613, -1.295393144, " NM5286", 36.83137418, -1.17262637 +2 NI0066, 36.82748524, -1.25734101, " EC4140", 37.4580536, -0.53351668,
Note - you should really use a module like Text::CSV, instead of the split hack, above.

        ...it is unhealthy to remain near things that are in the process of blowing up.     man page for WARP, by Larry Wall


In reply to Re: Nested foreach loops by NetWallah
in thread Nested foreach loops by keienn

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