<table>
<tr>
+<th colspan=3>
+<th colspan=2>Prices
+<th colspan=3>Quantities available
+<tr>
<th>Archipelago
<th>Island
<th>Unique best stall
-<th>Best price
-<th>Qty at best
-<th>Median price
-<th>Total qty
+<th>Best
+<th>Median
+<th>At best
+<th>Within 10%
+<th>Total
</tr>
% $islands->execute($commodid);
% my $island;
% while ($island= $islands->fetchrow_hashref) {
% my $islandid= $island->{'islandid'};
% $offers->execute($commodid, $islandid);
-% my ($offer, $best, $median);
+% my ($offer, $bestprice, $median, $marginal, @beststalls);
% my $tqty= $island->{'tqty'};
% my $cqty= 0;
+% my $bestqty= 0;
+% my $approxqty= 0;
% while ($offer= $offers->fetchrow_hashref) {
-% if (!$best) {
-% $best= { 'price' => $offer->{'price'} };
-% }
-% if ($offer->{'price'} == $best->{'price'}) {
-% $best->{'qty'} += $offer->{'qty'};
-% push @{ $best->{'stalls'} },
-% $offer->{'stallname'};
+% my $price= $offer->{'price'};
+% my $qty= $offer->{'qty'};
+% defined $bestprice or $bestprice= $price;
+% if ($price == $bestprice) {
+% $bestqty += $qty;
+% push @beststalls, $offer->{'stallname'};
% }
-% $cqty += $offer->{'qty'};
+% $cqty += $qty;
% if ($cqty*2 >= $tqty && !defined $median) {
-% $median= $offer->{'price'};
+% $median= $price;
+% }
+% if ($bestprice*9 <= $price*10 and
+% $price*10 <= $bestprice*11) {
+% $approxqty += $qty;
% }
% }
+% my $nstalls= @beststalls;
% $cqty == $tqty or die "$bs $cqty $tqty $commodid $islandid ";
-% my $nstalls= @{ $best->{'stalls'} };
<tr> <td><% $island->{'archipelago'} |h %>
<td><% $island->{'islandname'} |h %>
- <td><% $nstalls==1 ? $best->{'stalls'}[0] : "$nstalls offers" |h %>
- <td><% $best->{'price'} %>
- <td><% $best->{'qty'} %>
+ <td><% $nstalls==1 ? $beststalls[0] : "$nstalls offers" |h %>
+ <td><% $bestprice %>
<td><% $median %>
+ <td><% $bestqty %>
+ <td><% $approxqty %>
<td><% $tqty %>
</tr>
% }