HuasoFoundries /
math_histogram
| @@ 481-489 (lines=9) @@ | ||
| 478 | throw new \PEAR_Exception('data has not been set'); |
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| 479 | } |
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| 480 | $sumN = 0; |
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| 481 | if ($this->_dataOption == self::STATS_DATA_CUMMULATIVE) { |
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| 482 | foreach ($this->_data as $val => $freq) { |
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| 483 | $sumN += $freq * pow((double) $val, (double) $n); |
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| 484 | } |
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| 485 | } else { |
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| 486 | foreach ($this->_data as $val) { |
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| 487 | $sumN += pow((double) $val, (double) $n); |
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| 488 | } |
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| 489 | } |
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| 490 | return $sumN; |
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| 491 | } |
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| 492 | ||
| @@ 1512-1521 (lines=10) @@ | ||
| 1509 | } |
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| 1510 | } |
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| 1511 | $sdiff = 0; |
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| 1512 | if ($this->_dataOption == self::STATS_DATA_CUMMULATIVE) { |
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| 1513 | foreach ($this->_data as $val => $freq) { |
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| 1514 | $sdiff += $freq * pow((double) ($val - $mean), (double) $power); |
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| 1515 | } |
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| 1516 | } else { |
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| 1517 | foreach ($this->_data as $val) { |
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| 1518 | $sdiff += pow((double) ($val - $mean), (double) $power); |
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| 1519 | } |
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| 1520 | } |
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| 1521 | return $sdiff; |
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| 1522 | } |
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| 1523 | ||
| 1524 | /** |
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