| - long contract period (number of weeks/days?) | <?php |
| - Reported late | //long contract period (number of weeks/days?) |
| - 45 days? A late contract is a dodgy contract except maybe for variations? | $heuristics["DATE_LONG_CONTRACT_PERIOD"] = Array( |
| "description" => "long contract period (number of weeks/days?)" | |
| ); | |
| function DATE_LONG_CONTRACT_PERIOD($cn) | |
| { | |
| $averageContractPeriod = getAverageContractPeriod(); | |
| $stddevContractPeriod = getstddevContractPeriod(); | |
| $diff = strtotime($cn['contractEnd']) - strtotime($cn['contractStart']); | |
| $days = intval($diff / (60 * 60 * 24)); | |
| $value = abs($days - $averageContractPeriod) / $stddevContractPeriod; | |
| return Array( | |
| "heuristic_value" => $value, | |
| "raw_value" => $days, | |
| "mean" => $averageContractPeriod, | |
| "stddev" => $stddevContractPeriod | |
| ); | |
| } | |
| $averageContractPeriod; | |
| function getAverageContractPeriod() | |
| { | |
| global $averageContractPeriod, $stddevContractPeriod; | |
| if (!$averageContractPeriod) { | |
| getStddevAverageContractPeriod(); | |
| } | |
| return $averageContractPeriod; | |
| } | |
| $stddevContractPeriod; | |
| function getstddevContractPeriod() | |
| { | |
| global $averageContractPeriod, $stddevContractPeriod; | |
| if (!$stddevContractPeriod) { | |
| getStddevAverageContractPeriod(); | |
| } | |
| return $stddevContractPeriod; | |
| } | |
| function getStddevAverageContractPeriod() | |
| { | |
| global $averageContractPeriod, $stddevContractPeriod; | |
| $query = "select AVG(dateDiff(contractEnd,contractStart)),stddev(dateDiff(contractEnd,contractStart)) from contractnotice"; | |
| $result = mysql_query($query); | |
| $r = mysql_fetch_array($result, MYSQL_BOTH); | |
| $averageContractPeriod = $r[0]; | |
| $stddevContractPeriod = $r[1]; | |
| } | |
| //Reported late, 45 days? A late contract is a dodgy contract except maybe for variations? | |
| $heuristics["DATE_REPORTED_LATE"] = Array( | |
| "description" => "Reported late, 45 days?" | |
| ); | |
| function DATE_REPORTED_LATE($cn) | |
| { | |
| $averageDaysLate = getAverageDaysLate(); | |
| $stddevDaysLate = getStddevDaysLate(); | |
| $diff = strtotime($cn['publishDate']) - strtotime($cn['contractStart']); | |
| $days = intval($diff / (60 * 60 * 24)); | |
| if ($days <= 0) { | |
| $value = 0; | |
| } | |
| else { | |
| // +1 demerit for exceeding 45 day requirement | |
| $value = (abs($days - $averageDaysLate) / $stddevDaysLate) + ($days < 45 ? 0 : 1); | |
| } | |
| return Array( | |
| "heuristic_value" => $value, | |
| "raw_value" => $days, | |
| "mean" => $averageDaysLate, | |
| "stddev" => $stddevDaysLate | |
| ); | |
| } | |
| $averageDaysLate; | |
| function getAverageDaysLate() | |
| { | |
| global $averageDaysLate; | |
| if (!$averageDaysLate) { | |
| getDaysLate(); | |
| } | |
| return $averageDaysLate; | |
| } | |
| $stddevDaysLate; | |
| function getStddevDaysLate() | |
| { | |
| global $stddevDaysLate; | |
| if (!$stddevDaysLate) { | |
| getDaysLate(); | |
| } | |
| return $stddevDaysLate; | |
| } | |
| function getDaysLate() { | |
| global $averageDaysLate,$stddevDaysLate; | |
| $query = "select AVG(dateDiff(publishDate,contractStart)), STDDEV(dateDiff(publishDate,contractStart)) from contractnotice"; | |
| $result = mysql_query($query); | |
| $r = mysql_fetch_array($result, MYSQL_BOTH); | |
| $averageDaysLate = $r[0]; | |
| $stddevDaysLate = $r[1]; | |
| } | |
| ?> |