@@ 1340-1355 (lines=16) @@ | ||
1337 | * |
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1338 | * @return float |
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1339 | */ |
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1340 | public static function SUMX2MY2($matrixData1, $matrixData2) |
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1341 | { |
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1342 | $array1 = Functions::flattenArray($matrixData1); |
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1343 | $array2 = Functions::flattenArray($matrixData2); |
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1344 | $count = min(count($array1), count($array2)); |
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1345 | ||
1346 | $result = 0; |
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1347 | for ($i = 0; $i < $count; ++$i) { |
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1348 | if (((is_numeric($array1[$i])) && (!is_string($array1[$i]))) && |
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1349 | ((is_numeric($array2[$i])) && (!is_string($array2[$i])))) { |
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1350 | $result += ($array1[$i] * $array1[$i]) - ($array2[$i] * $array2[$i]); |
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1351 | } |
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1352 | } |
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1353 | ||
1354 | return $result; |
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1355 | } |
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1356 | ||
1357 | /** |
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1358 | * SUMX2PY2. |
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@@ 1365-1380 (lines=16) @@ | ||
1362 | * |
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1363 | * @return float |
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1364 | */ |
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1365 | public static function SUMX2PY2($matrixData1, $matrixData2) |
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1366 | { |
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1367 | $array1 = Functions::flattenArray($matrixData1); |
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1368 | $array2 = Functions::flattenArray($matrixData2); |
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1369 | $count = min(count($array1), count($array2)); |
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1370 | ||
1371 | $result = 0; |
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1372 | for ($i = 0; $i < $count; ++$i) { |
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1373 | if (((is_numeric($array1[$i])) && (!is_string($array1[$i]))) && |
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1374 | ((is_numeric($array2[$i])) && (!is_string($array2[$i])))) { |
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1375 | $result += ($array1[$i] * $array1[$i]) + ($array2[$i] * $array2[$i]); |
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1376 | } |
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1377 | } |
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1378 | ||
1379 | return $result; |
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1380 | } |
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1381 | ||
1382 | /** |
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1383 | * SUMXMY2. |
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@@ 1390-1405 (lines=16) @@ | ||
1387 | * |
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1388 | * @return float |
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1389 | */ |
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1390 | public static function SUMXMY2($matrixData1, $matrixData2) |
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1391 | { |
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1392 | $array1 = Functions::flattenArray($matrixData1); |
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1393 | $array2 = Functions::flattenArray($matrixData2); |
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1394 | $count = min(count($array1), count($array2)); |
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1395 | ||
1396 | $result = 0; |
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1397 | for ($i = 0; $i < $count; ++$i) { |
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1398 | if (((is_numeric($array1[$i])) && (!is_string($array1[$i]))) && |
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1399 | ((is_numeric($array2[$i])) && (!is_string($array2[$i])))) { |
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1400 | $result += ($array1[$i] - $array2[$i]) * ($array1[$i] - $array2[$i]); |
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1401 | } |
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1402 | } |
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1403 | ||
1404 | return $result; |
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1405 | } |
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1406 | ||
1407 | /** |
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1408 | * TRUNC. |