Histogram::__construct() - Code Metrics - HuasoFoundries/math_histogram - Measure and Improve Code Quality continuously with Scrutinizer

Histogram::__construct() A
last analyzed 2018-06-06 14:42 UTC

↳ Parent: Histogram

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	2
nc	1
nop	4
dl	0
loc	4
rs	10
c	0
b	0
f	0

<?php
namespace HuasoFoundries\Histogram;

class Histogram extends AbstractHistogram
{

    /**
     * Constructor
     *
     * @access  public
     * @param   optional    int $type   one of HISTOGRAM_SIMPLE or HISTOGRAM_CUMMULATIVE
     * @param   optional    int $nbins  number of bins to use
     * @param   optional    float   $rangeLow   lowest value to use for bin frequency calculation
     * @param   optional    float   $rangeHigh   highest value to use for bin frequency calculation
     * @return  object  Histogram
     *
     * @see setBinOptions()
     * @see Math_AbstractHistogram::setType()
     * @see Math_AbstractHistogram
     */
    public function __construct($type = self::HISTOGRAM_SIMPLE, $nbins = -1, $rangeLow = null, $rangeHigh = null)
    {
        $this->setType($type);
        $this->setBinOptions($nbins, $rangeLow, $rangeHigh);
    }

    /**
     * Sets the binning options. Overrides parent's method.
     *
     * @access  public
     * @param   int $nbins  the number of bins to use for computing the histogram
     * @param   optional    float   $rangeLow   lowest value to use for bin frequency calculation
     * @param   optional    float   $rangeHigh   highest value to use for bin frequency calculation
     * @return  void
     */
    public function setBinOptions($nbins, $rangeLow = null, $rangeHigh = null)
    {
        $this->_nbins     = (is_int($nbins) && $nbins > 2) ? $nbins : 10;
        $this->_rangeLow  = $rangeLow;
        $this->_rangeHigh = $rangeHigh;
    }

    /**
     * Returns an associative array with the bin options
     *
     * @access public
     * @return array Associative array of bin options:
     *                  array(  'nbins'=>$nbins,
     *                          'rangeLow'=>$rangeLow,
     *                          'rangeHigh'=>$rangeHigh);
     */
    public function getBinOptions()
    {
        return array(
            'nbins'     => $this->_nbins,
            'rangeLow'  => $this->_rangeLow,
            'rangeHigh' => $this->_rangeHigh,
        );
    }

    /**
     * Sets the data to be processed. The data will be validated to
     * be a simple uni-dimensional numerical array
     *
     * @access  public
     * @param   array   $data   the numeric array
     * @return  mixed   boolean true on success, a \PEAR_Error object otherwise
     *
     * @see _clear()
     * @see Math_AbstractHistogram::getData()
     * @see Math_AbstractHistogram
     * @see getHistogramData()
     */
    public function setData($data)
    {
        $this->_clear();
        if (!is_array($data)) {

            throw new \PEAR_Exception("array of numeric data expected");
        }

        foreach ($data as $item) {
            if (!is_numeric($item)) {
                throw new \PEAR_Exception("non-numeric item in array");
            }
        }

        $this->_data = $data;
        if (is_null($this->_rangeLow)) {
            $this->_rangeLow = min($this->_data);
        }

        if (is_null($this->_rangeHigh)) {
            $this->_rangeHigh = max($this->_data);
        }

        sort($this->_data);
        return true;
    }

    /**
     * Calculates the histogram bins and frequencies
     *
     * @access  public
     * @param   optional    $statsMode  calculate basic statistics (STATS_BASIC) or full (STATS_FULL)
filter:
    dependency_paths: ["lib/*"]
     * @return  mixed   boolean true on success, a \PEAR_Error object otherwise
     *
     * @see Math_Stats
     */
    public function calculate($statsMode = \HuasoFoundries\Math\Stats::STATS_BASIC)
    {
        $this->_stats = new \HuasoFoundries\Math\Stats();

        $this->_statsMode = $statsMode;
class Id
{
    public $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}
        $delta            = ($this->_rangeHigh - $this->_rangeLow) / $this->_nbins;
        $lastpos          = 0;

        $cumm             = 0;
        $data             = $this->_histogramData();
        $ndata            = count($data);
        $ignoreList       = array();

        for ($i = 0; $i < $this->_nbins; $i++) {
            $loBin                   = $this->_rangeLow + $i * $delta;
            $hiBin                   = $loBin + $delta;
            $this->_bins[$i]["low"]  = $loBin;
            $this->_bins[$i]["high"] = $hiBin;
            $this->_bins[$i]["mid"]  = ($hiBin + $loBin) / 2;
            if ($this->_type == self::HISTOGRAM_CUMMULATIVE) {
                $this->_bins[$i]["count"] = $cumm;
            } else {
                $this->_bins[$i]["count"] = 0;
            }

            for ($j = 0; $j < $ndata; $j++) {
                if (!empty($ignoreList) && in_array($j, $ignoreList)) {
                    continue;
                }

                if ($j == 0) {
                    $inRange = ($loBin <= $data[$j] && $hiBin >= $data[$j]);
                } else {
                    $inRange = ($loBin < $data[$j] && $hiBin >= $data[$j]);
                }

                if ($inRange) {
                    $this->_bins[$i]["count"]++;
                    if ($this->_type == self::HISTOGRAM_CUMMULATIVE) {
                        $cumm++;
                    }

                    $ignoreList[] = $j;
                }
            }
        }
        return true;
    }

    /**
     * Returns the statistics for the data set
     *
     * @access  public
     * @return  mixed   an associative array on success, a \PEAR_Error object otherwise
     */
    public function getDataStats()
    {
        if ($this->isCalculated()) {
            $this->_stats->setData($this->_data);

            return $this->_stats->calc($this->_statsMode);
        } else {
            throw new \PEAR_Exception("histogram has not been calculated");
        }
    }

    /**
     * Returns the statistics for the data set, filtered using the bin range
     *
     * @access  public
     * @return  mixed   an associative array on success, a \PEAR_Error object otherwise
     */
    public function getHistogramDataStats()
    {
        if ($this->isCalculated()) {
            $this->_stats->setData($this->_histogramData());
            return $this->_stats->calc($this->_statsMode);
        } else {
            throw new \PEAR_Exception("histogram has not been calculated");
        }
    }

    /**
     * Returns the bins and frequencies calculated using the given
     * bin mode and separator
     *
     * @access  public
     * @param   int $mode   one of HISTOGRAM_LO_BINS, HISTOGRAM_MID_BINS (default), or HISTOGRAM_HI_BINS
     * @param   string  $separator  the separator, default ", "
     * @return  mixed  a string on success, a \PEAR_Error object otherwise
     */
    public function toSeparated($mode = self::HISTOGRAM_MID_BINS, $separator = ", ")
    {
        $bins = $this->getBins($mode);
        if (\PEAR::isError($bins)) {
            return $bins;
        }

        $nbins = count($bins);

        $out   = array("# bin{$separator}frequency");
        foreach ($bins as $bin => $freq) {
            $out[] = "{$bin}{$separator}{$freq}";
        }

        return implode("\n", $out) . "\n";
    }

    /**
     * Static method to check that an object is a Histogram instance
     *
     * @static
     * @access public
     * @param  object Histogram $hist An instance of the Histogram class
     * @return boolean TRUE on success, FALSE otherwise
     */
    public static function isValidHistogram(&$hist)
    {
        return (is_object($hist) && is_a($hist, '\HuasoFoundries\Histogram\Histogram'));
    }

    /**
     * Method to interrogate if a histogram has been calculated
     *
     * @access public
     * @return boolean TRUE if the histogram was calculated, FALSE otherwise
     * @see calculate()
     */
    public function isCalculated()
    {
        return !empty($this->_bins);
    }

    /**
     * Generates a plot using the appropriate printer object
     *
     * @param object $printer A Histogram_Printer_* object
     * @return string|PEAR_Error A string on success, a \PEAR_Error otherwise
filter:
    dependency_paths: ["lib/*"]
     */
    public function generatePlot(&$printer)
    {
        if (is_object($printer) && is_a($printer, '\HuasoFoundries\Histogram\Printer\Common')) {
            $printer->setHistogram($this);
            return $printer->generateOutput();
        } else {
            throw new \PEAR_Exception('Invalid object, expecting a \HuasoFoundries\Histogram\Printer\* instance');
        }
    }

    /**
     * Prints a simple ASCII representation of the histogram
     *
     * @deprecated
     * @access  public
     * @param   optional    int $mode   one of HISTOGRAM_LO_BINS, HISTOGRAM_MID_BINS, or HISTOGRAM_HI_BINS (default)
     * @return  mixed   a string on success, a \PEAR_Error object otherwise
     */
    public function printHistogram($mode = self::HISTOGRAM_HI_BINS)
    {
        if (!$this->isCalculated()) {
            throw new \PEAR_Exception("histogram has not been calculated");
        }
        $out = ($this->_type == self::HISTOGRAM_CUMMULATIVE) ? "Cummulative Frequency" : "Histogram";
        $out .= "\n\tNumber of bins: " . $this->_nbins . "\n";
        $out .= "\tPlot range: [" . $this->_rangeLow . ", " . $this->_rangeHigh . "]\n";
        $hdata = $this->_histogramData();
        $out .= "\tData range: [" . min($hdata) . ", " . max($hdata) . "]\n";
        $out .= "\tOriginal data range: [" . min($this->_data) . ", " . max($this->_data) . "]\n";
        $out .= "BIN (FREQUENCY) ASCII_BAR (%)\n";
        $fmt     = "%-4.3f (%-4d) |%s\n";
        $bins    = $this->_filterBins($mode);
        $maxfreq = max(array_values($bins));
        $total   = count($this->_data);
        foreach ($bins as $bin => $freq) {
            $out .= sprintf($fmt, $bin, $freq, $this->_bar($freq, $maxfreq, $total));
        }

        return $out;
    }

    /**
     * Prints a simple ASCII bar
     *
     * @access  private
     * @param   int $freq   the frequency
     * @param   int $maxfreq    the maximum frequency
     * @param   int $total  the total count
     * @return  string
     */
    public function _bar($freq, $maxfreq, $total)
    {
        $fact  = floatval(($maxfreq > 40) ? 40 / $maxfreq : 1);
        $niter = round($freq * $fact);
        $out   = "";
        for ($i = 0; $i < $niter; $i++) {
            $out .= "*";
        }

        return $out . sprintf(" (%.1f%%)", $freq / $total * 100);
    }

    /**
     * Returns a subset of the bins array by bin value type
     *
     * @access  private
     * @param   int $mode one of HISTOGRAM_MID_BINS, HISTOGRAM_LO_BINS or HISTOGRAM_HI_BINS
     * @return  array
     */
    public function _filterBins($mode)
    {
        $map = array(
            self::HISTOGRAM_MID_BINS => "mid",
            self::HISTOGRAM_LO_BINS  => "low",
            self::HISTOGRAM_HI_BINS  => "high",
        );
        $filtered = array();
        foreach ($this->_bins as $bin) {
            $filtered["{$bin[$map[$mode]]}"] = $bin["count"];
        }

        return $filtered;
    }

    /**
     * Returns an array of data contained within the range for the
     * histogram calculation. Overrides the empty implementation in
     * Math_AbstractHistogram::_histogramData()
     *
     * @access  private
     * @return  array
     */
    public function _histogramData()
    {
        $data = array();
        foreach ($this->_data as $val) {
            if ($val < $this->_rangeLow || $val > $this->_rangeHigh) {
                continue;
            } else {
                $data[] = $val;
            }
        }

        return $data;
    }
}

// vim: ts=4:sw=4:et:
// vim6: fdl=1:


1			<?php
2			namespace HuasoFoundries\Histogram;
3
4			class Histogram extends AbstractHistogram
5			{
6
7			/**
8			* Constructor
9			*
10			* @access public
11			* @param optional int $type one of HISTOGRAM_SIMPLE or HISTOGRAM_CUMMULATIVE
12			* @param optional int $nbins number of bins to use
13			* @param optional float $rangeLow lowest value to use for bin frequency calculation
14			* @param optional float $rangeHigh highest value to use for bin frequency calculation
15			* @return object Histogram
16			*
17			* @see setBinOptions()
18			* @see Math_AbstractHistogram::setType()
19			* @see Math_AbstractHistogram
20			*/
21			public function __construct($type = self::HISTOGRAM_SIMPLE, $nbins = -1, $rangeLow = null, $rangeHigh = null)
22			{
23			$this->setType($type);
24			$this->setBinOptions($nbins, $rangeLow, $rangeHigh);
25			}
26
27			/**
28			* Sets the binning options. Overrides parent's method.
29			*
30			* @access public
31			* @param int $nbins the number of bins to use for computing the histogram
32			* @param optional float $rangeLow lowest value to use for bin frequency calculation
33			* @param optional float $rangeHigh highest value to use for bin frequency calculation
34			* @return void
35			*/
36			public function setBinOptions($nbins, $rangeLow = null, $rangeHigh = null)
37			{
38			$this->_nbins = (is_int($nbins) && $nbins > 2) ? $nbins : 10;
39			$this->_rangeLow = $rangeLow;
40			$this->_rangeHigh = $rangeHigh;
41			}
42
43			/**
44			* Returns an associative array with the bin options
45			*
46			* @access public
47			* @return array Associative array of bin options:
48			* array( 'nbins'=>$nbins,
49			* 'rangeLow'=>$rangeLow,
50			* 'rangeHigh'=>$rangeHigh);
51			*/
52			public function getBinOptions()
53			{
54			return array(
55			'nbins' => $this->_nbins,
56			'rangeLow' => $this->_rangeLow,
57			'rangeHigh' => $this->_rangeHigh,
58			);
59			}
60
61			/**
62			* Sets the data to be processed. The data will be validated to
63			* be a simple uni-dimensional numerical array
64			*
65			* @access public
66			* @param array $data the numeric array
67			* @return mixed boolean true on success, a \PEAR_Error object otherwise
68			*
69			* @see _clear()
70			* @see Math_AbstractHistogram::getData()
71			* @see Math_AbstractHistogram
72			* @see getHistogramData()
73			*/
74			public function setData($data)
75			{
76			$this->_clear();
77			if (!is_array($data)) {
			0 ignored issues – show introduced 2018-06-06 14:42 UTC by Report Bug Copy Issue Report The condition `is_array($data)` is always `true`. Loading history...
78			throw new \PEAR_Exception("array of numeric data expected");
79			}
80
81			foreach ($data as $item) {
82			if (!is_numeric($item)) {
83			throw new \PEAR_Exception("non-numeric item in array");
84			}
85			}
86
87			$this->_data = $data;
88			if (is_null($this->_rangeLow)) {
89			$this->_rangeLow = min($this->_data);
90			}
91
92			if (is_null($this->_rangeHigh)) {
93			$this->_rangeHigh = max($this->_data);
94			}
95
96			sort($this->_data);
97			return true;
98			}
99
100			/**
101			* Calculates the histogram bins and frequencies
102			*
103			* @access public
104			* @param optional $statsMode calculate basic statistics (STATS_BASIC) or full (STATS_FULL)
			0 ignored issues – show Bug introduced 2017-10-09 01:52 UTC by Report Bug Copy Issue Report The type `HuasoFoundries\Histogram\optional` was not found. Maybe you did not declare it correctly or list all dependencies? The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g. `excluded_paths: ["lib/"]`, you can move it to the dependency path list as follows: filter: dependency_paths: ["lib/"] For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths Loading history...
105			* @return mixed boolean true on success, a \PEAR_Error object otherwise
106			*
107			* @see Math_Stats
108			*/
109			public function calculate($statsMode = \HuasoFoundries\Math\Stats::STATS_BASIC)
110			{
111			$this->_stats = new \HuasoFoundries\Math\Stats();
112
113			$this->_statsMode = $statsMode;
			0 ignored issues – show Documentation Bug introduced 2017-10-09 01:52 UTC by Report Bug Copy Issue Report It seems like `$statsMode` can also be of type `HuasoFoundries\Histogram\optional`. However, the property `$_statsMode` is declared as type `integer`. Maybe add an additional type check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly. For example, imagine you have a variable `$accountId` that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the `id` property of an instance of the `Account` class. This class holds a proper account, so the id value must no longer be false. Either this assignment is in error or a type check should be added for that assignment. class Id { public $id; public function __construct($id) { $this->id = $id; } } class Account { /** @var Id $id */ public $id; } $account_id = false; if (starsAreRight()) { $account_id = new Id(42); } $account = new Account(); if ($account instanceof Id) { $account->id = $account_id; } Loading history...
114			$delta = ($this->_rangeHigh - $this->_rangeLow) / $this->_nbins;
115			$lastpos = 0;
			0 ignored issues – show Unused Code introduced 2017-10-09 01:52 UTC by Report Bug Copy Issue Report The assignment to `$lastpos` is dead and can be removed. Loading history...
116			$cumm = 0;
117			$data = $this->_histogramData();
118			$ndata = count($data);
119			$ignoreList = array();
120
121			for ($i = 0; $i < $this->_nbins; $i++) {
122			$loBin = $this->_rangeLow + $i * $delta;
123			$hiBin = $loBin + $delta;
124			$this->_bins[$i]["low"] = $loBin;
125			$this->_bins[$i]["high"] = $hiBin;
126			$this->_bins[$i]["mid"] = ($hiBin + $loBin) / 2;
127			if ($this->_type == self::HISTOGRAM_CUMMULATIVE) {
128			$this->_bins[$i]["count"] = $cumm;
129			} else {
130			$this->_bins[$i]["count"] = 0;
131			}
132
133			for ($j = 0; $j < $ndata; $j++) {
134			if (!empty($ignoreList) && in_array($j, $ignoreList)) {
135			continue;
136			}
137
138			if ($j == 0) {
139			$inRange = ($loBin <= $data[$j] && $hiBin >= $data[$j]);
140			} else {
141			$inRange = ($loBin < $data[$j] && $hiBin >= $data[$j]);
142			}
143
144			if ($inRange) {
145			$this->_bins[$i]["count"]++;
146			if ($this->_type == self::HISTOGRAM_CUMMULATIVE) {
147			$cumm++;
148			}
149
150			$ignoreList[] = $j;
151			}
152			}
153			}
154			return true;
155			}
156
157			/**
158			* Returns the statistics for the data set
159			*
160			* @access public
161			* @return mixed an associative array on success, a \PEAR_Error object otherwise
162			*/
163			public function getDataStats()
164			{
165			if ($this->isCalculated()) {
166			$this->_stats->setData($this->_data);
167
168			return $this->_stats->calc($this->_statsMode);
169			} else {
170			throw new \PEAR_Exception("histogram has not been calculated");
171			}
172			}
173
174			/**
175			* Returns the statistics for the data set, filtered using the bin range
176			*
177			* @access public
178			* @return mixed an associative array on success, a \PEAR_Error object otherwise
179			*/
180			public function getHistogramDataStats()
181			{
182			if ($this->isCalculated()) {
183			$this->_stats->setData($this->_histogramData());
184			return $this->_stats->calc($this->_statsMode);
185			} else {
186			throw new \PEAR_Exception("histogram has not been calculated");
187			}
188			}
189
190			/**
191			* Returns the bins and frequencies calculated using the given
192			* bin mode and separator
193			*
194			* @access public
195			* @param int $mode one of HISTOGRAM_LO_BINS, HISTOGRAM_MID_BINS (default), or HISTOGRAM_HI_BINS
196			* @param string $separator the separator, default ", "
197			* @return mixed a string on success, a \PEAR_Error object otherwise
198			*/
199			public function toSeparated($mode = self::HISTOGRAM_MID_BINS, $separator = ", ")
200			{
201			$bins = $this->getBins($mode);
202			if (\PEAR::isError($bins)) {
203			return $bins;
204			}
205
206			$nbins = count($bins);
			0 ignored issues – show Unused Code introduced 2017-10-09 01:52 UTC by Report Bug Copy Issue Report The assignment to `$nbins` is dead and can be removed. Loading history...
207			$out = array("# bin{$separator}frequency");
208			foreach ($bins as $bin => $freq) {
209			$out[] = "{$bin}{$separator}{$freq}";
210			}
211
212			return implode("\n", $out) . "\n";
213			}
214
215			/**
216			* Static method to check that an object is a Histogram instance
217			*
218			* @static
219			* @access public
220			* @param object Histogram $hist An instance of the Histogram class
221			* @return boolean TRUE on success, FALSE otherwise
222			*/
223			public static function isValidHistogram(&$hist)
224			{
225			return (is_object($hist) && is_a($hist, '\HuasoFoundries\Histogram\Histogram'));
226			}
227
228			/**
229			* Method to interrogate if a histogram has been calculated
230			*
231			* @access public
232			* @return boolean TRUE if the histogram was calculated, FALSE otherwise
233			* @see calculate()
234			*/
235			public function isCalculated()
236			{
237			return !empty($this->_bins);
238			}
239
240			/**
241			* Generates a plot using the appropriate printer object
242			*
243			* @param object $printer A Histogram_Printer_* object
244			* @return string\|PEAR_Error A string on success, a \PEAR_Error otherwise
			0 ignored issues – show Bug introduced 2017-10-09 01:52 UTC by Report Bug Copy Issue Report The type `HuasoFoundries\Histogram\PEAR_Error` was not found. Maybe you did not declare it correctly or list all dependencies? The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g. `excluded_paths: ["lib/"]`, you can move it to the dependency path list as follows: filter: dependency_paths: ["lib/"] For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths Loading history...
245			*/
246			public function generatePlot(&$printer)
247			{
248			if (is_object($printer) && is_a($printer, '\HuasoFoundries\Histogram\Printer\Common')) {
249			$printer->setHistogram($this);
250			return $printer->generateOutput();
251			} else {
252			throw new \PEAR_Exception('Invalid object, expecting a \HuasoFoundries\Histogram\Printer\* instance');
253			}
254			}
255
256			/**
257			* Prints a simple ASCII representation of the histogram
258			*
259			* @deprecated
260			* @access public
261			* @param optional int $mode one of HISTOGRAM_LO_BINS, HISTOGRAM_MID_BINS, or HISTOGRAM_HI_BINS (default)
262			* @return mixed a string on success, a \PEAR_Error object otherwise
263			*/
264			public function printHistogram($mode = self::HISTOGRAM_HI_BINS)
265			{
266			if (!$this->isCalculated()) {
267			throw new \PEAR_Exception("histogram has not been calculated");
268			}
269			$out = ($this->_type == self::HISTOGRAM_CUMMULATIVE) ? "Cummulative Frequency" : "Histogram";
270			$out .= "\n\tNumber of bins: " . $this->_nbins . "\n";
271			$out .= "\tPlot range: [" . $this->_rangeLow . ", " . $this->_rangeHigh . "]\n";
272			$hdata = $this->_histogramData();
273			$out .= "\tData range: [" . min($hdata) . ", " . max($hdata) . "]\n";
274			$out .= "\tOriginal data range: [" . min($this->_data) . ", " . max($this->_data) . "]\n";
275			$out .= "BIN (FREQUENCY) ASCII_BAR (%)\n";
276			$fmt = "%-4.3f (%-4d) \|%s\n";
277			$bins = $this->_filterBins($mode);
278			$maxfreq = max(array_values($bins));
279			$total = count($this->_data);
280			foreach ($bins as $bin => $freq) {
281			$out .= sprintf($fmt, $bin, $freq, $this->_bar($freq, $maxfreq, $total));
282			}
283
284			return $out;
285			}
286
287			/**
288			* Prints a simple ASCII bar
289			*
290			* @access private
291			* @param int $freq the frequency
292			* @param int $maxfreq the maximum frequency
293			* @param int $total the total count
294			* @return string
295			*/
296			public function _bar($freq, $maxfreq, $total)
297			{
298			$fact = floatval(($maxfreq > 40) ? 40 / $maxfreq : 1);
299			$niter = round($freq * $fact);
300			$out = "";
301			for ($i = 0; $i < $niter; $i++) {
302			$out .= "*";
303			}
304
305			return $out . sprintf(" (%.1f%%)", $freq / $total * 100);
306			}
307
308			/**
309			* Returns a subset of the bins array by bin value type
310			*
311			* @access private
312			* @param int $mode one of HISTOGRAM_MID_BINS, HISTOGRAM_LO_BINS or HISTOGRAM_HI_BINS
313			* @return array
314			*/
315			public function _filterBins($mode)
316			{
317			$map = array(
318			self::HISTOGRAM_MID_BINS => "mid",
319			self::HISTOGRAM_LO_BINS => "low",
320			self::HISTOGRAM_HI_BINS => "high",
321			);
322			$filtered = array();
323			foreach ($this->_bins as $bin) {
324			$filtered["{$bin[$map[$mode]]}"] = $bin["count"];
325			}
326
327			return $filtered;
328			}
329
330			/**
331			* Returns an array of data contained within the range for the
332			* histogram calculation. Overrides the empty implementation in
333			* Math_AbstractHistogram::_histogramData()
334			*
335			* @access private
336			* @return array
337			*/
338			public function _histogramData()
339			{
340			$data = array();
341			foreach ($this->_data as $val) {
342			if ($val < $this->_rangeLow \|\| $val > $this->_rangeHigh) {
343			continue;
344			} else {
345			$data[] = $val;
346			}
347			}
348
349			return $data;
350			}
351			}
352
353			// vim: ts=4:sw=4:et:
354			// vim6: fdl=1:
355

HuasoFoundries / math_histogram

Histogram::__construct() A last analyzed 2018-06-06 14:42 UTC

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Histogram::__construct() A
last analyzed 2018-06-06 14:42 UTC