HuasoFoundries /
math_histogram
| @@ 374-392 (lines=19) @@ | ||
| 371 | * @see calc() |
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| 372 | * @see max() |
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| 373 | */ |
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| 374 | public function min() |
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| 375 | { |
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| 376 | if ($this->_data == null) { |
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| 377 | throw new \PEAR_Exception('data has not been set'); |
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| 378 | } |
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| 379 | ||
| 380 | if (!array_key_exists('min', $this->_calculatedValues)) { |
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| 381 | if ($this->_dataOption == self::STATS_DATA_CUMMULATIVE) { |
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| 382 | $min = min(array_keys($this->_data)); |
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| 383 | } else { |
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| 384 | $min = min($this->_data); |
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| 385 | } |
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| 386 | ||
| 387 | $this->_calculatedValues['min'] = $min; |
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| 388 | } |
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| 389 | ||
| 390 | return $this->_calculatedValues['min']; |
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| 391 | } |
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| 392 | ||
| 393 | /** |
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| 394 | * Calculates the maximum of a data set. |
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| 395 | * Handles cummulative data sets correctly |
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| @@ 402-417 (lines=16) @@ | ||
| 399 | * @see calc() |
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| 400 | * @see min() |
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| 401 | */ |
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| 402 | public function max() |
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| 403 | { |
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| 404 | if ($this->_data == null) { |
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| 405 | throw new \PEAR_Exception('data has not been set'); |
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| 406 | } |
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| 407 | if (!array_key_exists('max', $this->_calculatedValues)) { |
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| 408 | if ($this->_dataOption == self::STATS_DATA_CUMMULATIVE) { |
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| 409 | $max = max(array_keys($this->_data)); |
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| 410 | } else { |
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| 411 | $max = max($this->_data); |
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| 412 | } |
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| 413 | $this->_calculatedValues['max'] = $max; |
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| 414 | } |
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| 415 | return $this->_calculatedValues['max']; |
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| 416 | } |
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| 417 | ||
| 418 | /** |
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| 419 | * Calculates SUM { xi } |
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| 420 | * Handles cummulative data sets correctly |
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| @@ 582-597 (lines=16) @@ | ||
| 579 | * @return mixed the count on success, a PEAR_Error object otherwise |
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| 580 | * @see calc() |
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| 581 | */ |
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| 582 | public function count() |
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| 583 | { |
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| 584 | if ($this->_data == null) { |
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| 585 | throw new \PEAR_Exception('data has not been set'); |
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| 586 | } |
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| 587 | if (!array_key_exists('count', $this->_calculatedValues)) { |
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| 588 | if ($this->_dataOption == self::STATS_DATA_CUMMULATIVE) { |
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| 589 | $count = count($this->_dataExpanded); |
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| 590 | } else { |
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| 591 | $count = count($this->_data); |
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| 592 | } |
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| 593 | $this->_calculatedValues['count'] = $count; |
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| 594 | } |
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| 595 | return $this->_calculatedValues['count']; |
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| 596 | } |
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| 597 | ||
| 598 | /** |
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| 599 | * Calculates the mean (average) of the data points in the set |
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| 600 | * Handles cummulative data sets correctly |
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