X-Git-Url: http://git.equinoxoli.org/?p=migration-tools.git;a=blobdiff_plain;f=elect_zips;fp=elect_zips;h=7671bc02901eb830d6304607455afa80a7355ad3;hp=0000000000000000000000000000000000000000;hb=6aa33c3a44b3684b0b176ac0cc743106bd0348b5;hpb=ccd3ad3cdb32e053fd6655ea7340466eecf5f0ff

diff --git a/elect_zips b/elect_zips
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+#!/usr/bin/perl -w
+
+use strict;
+
+my $VERSION = '1.00';
+
+=pod
+
+NAME
+
+	elect_zips - Utility to elect a winning city/state for each ZIP code based on patron data
+
+USAGE
+
+	psql -U evergreen -A -t -F $'\t' -c 'SELECT city, state, post_code FROM actor.usr_address' > raw-csz.tsv
+	elect_zips < raw-csz.tsv > winning-zips.tsv
+
+NOTES
+
+	Given input like "Miami Springs\tFL\t33166\n" derived from patron addresses,
+	this utility will print a city and state for each zip that has the maximum
+	number of occurrences. (It does not attempt to break ties. If there is a tie,
+	the city and state that reaches the maximum first will end up winning.)
+
+	You can also feed the output of elect_zips directly into I<enrich_zips --db US.txt --makezips>
+
+=cut
+
+my %zips;
+
+# Go through the input and tally the city-state combinations for each ZIP code
+while (<>) {
+	chomp;
+	(my $city, my $state, my $zip) = split(/\t/) or next;
+	next unless $zip =~ m/([\d]{5})/; # If it doesn't have 5 digits in a row, it's not a ZIP
+	$zip =~ s/^([\d]{5}).*$/$1/;      # We only want the 5-digit ZIP
+	$state = uc($state);
+	$city =~ s/^\s+//;
+	$city =~ s/\s+$//;
+	$zips{$zip}{"$city\t$state"}++;
+}
+
+# Pick and print a winner for each ZIP code
+foreach(sort keys %zips) {
+	my $zip = $_;
+	my $max = 0;
+	my $citystate = "";
+	foreach(keys %{$zips{$zip}}) {
+		if ($zips{$zip}{$_} > $max) {
+			$max = $zips{$zip}{$_};
+			$citystate = $_;
+		}
+	}
+	print "$citystate\t$zip\n";
+}