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Ranked list

Thread began 8/11/2021 7:11 am by birdscreen398247 | Last modified 8/12/2021 9:59 am by Ray Borduin | 52 views | 4 replies |

birdscreen398247

Ranked list

I would like to automatically rank the records in a query of numbers, so that the highest one is 1, the next lower one is 2, etc.

However, where there are two numbers the same, they should have the same rank and the next entry would then compensate for all of those records with the same rank.

Ie. In the sample file attached, it would look like this"

Rank Quantity
1 391
2 390
2 390
4 385 (this record is #4 because there are 3 records above it.)
etc.

Is there an easy way to do this?

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Ray BorduinWebAssist

Something like this would probably do it:

php:
<?php

$rank 
0;
$lastVal = -1;
$skipped 0;
?>
<?php
$wa_startindex 
0;
while(!
$rsLists->atEnd()) {
  
$wa_startindex $rsLists->Index;
    if (
$lastVal != $rsLists->getColumnVal("Quantity")) {
        
$lastVal $rsLists->getColumnVal("Quantity");
        
$rank += $skipped 1;
                
$skipped 0;
    } else {
        
$skipped++;
    }
?>
  <tr>
    <td><?php echo($rank); ?></td>
    <td><?php echo($rsLists->getColumnVal("Quantity")); ?></td>
    <td><?php echo($rsLists->getColumnVal("FullName")); ?></td>
  </tr>
  <?php
  $rsLists
->moveNext();
}
$rsLists->moveFirst(); //return RS to first record
unset($wa_startindex);
unset(
$wa_repeatcount);
?>
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Did this help? Tips are appreciated...

birdscreen398247

Close, but no cigar...

The results are

1 391 Barbara Haas
2 390 Franklin Haas
2 390 Devich Farbotnik
4 385 Dave DeReamus (ok to here, but then...)
6 383 Peter Robinson (should be 5)
8 379 Eric Witmer (should be 6) etc.
10 375 Tom Garner
12 374 Ken Lebo

For some reason it is adding an extra rank.

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Ray BorduinWebAssist

I forgot to reset the skipped to zero once it was accounted for. I updated the code.

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Did this help? Tips are appreciated...

birdscreen398247

That's a winner!

Thanks

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