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Database.php @ 1

Last change on this file since 1 was 1, checked in by dungnv, 11 years ago

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1	<?php
2	/**
3	* PHPExcel
4	*
5	* Copyright (c) 2006 - 2014 PHPExcel
6	*
7	* This library is free software; you can redistribute it and/or
8	* modify it under the terms of the GNU Lesser General Public
9	* License as published by the Free Software Foundation; either
10	* version 2.1 of the License, or (at your option) any later version.
11	*
12	* This library is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15	* Lesser General Public License for more details.
16	*
17	* You should have received a copy of the GNU Lesser General Public
18	* License along with this library; if not, write to the Free Software
19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20	*
21	* @category PHPExcel
22	* @package PHPExcel_Calculation
23	* @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
24	* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
25	* @version 1.8.0, 2014-03-02
26	*/
27
28
29	/** PHPExcel root directory */
30	if (!defined('PHPEXCEL_ROOT')) {
31	/**
32	* @ignore
33	*/
34	define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
35	require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
36	}
37
38
39	/**
40	* PHPExcel_Calculation_Database
41	*
42	* @category PHPExcel
43	* @package PHPExcel_Calculation
44	* @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
45	*/
46	class PHPExcel_Calculation_Database {
47
48
49	/**
50	* __fieldExtract
51	*
52	* Extracts the column ID to use for the data field.
53	*
54	* @access private
55	* @param mixed[] $database The range of cells that makes up the list or database.
56	* A database is a list of related data in which rows of related
57	* information are records, and columns of data are fields. The
58	* first row of the list contains labels for each column.
59	* @param mixed $field Indicates which column is used in the function. Enter the
60	* column label enclosed between double quotation marks, such as
61	* "Age" or "Yield," or a number (without quotation marks) that
62	* represents the position of the column within the list: 1 for
63	* the first column, 2 for the second column, and so on.
64	* @return string\|NULL
65	*
66	*/
67	private static function __fieldExtract($database,$field) {
68	$field = strtoupper(PHPExcel_Calculation_Functions::flattenSingleValue($field));
69	$fieldNames = array_map('strtoupper',array_shift($database));
70
71	if (is_numeric($field)) {
72	$keys = array_keys($fieldNames);
73	return $keys[$field-1];
74	}
75	$key = array_search($field,$fieldNames);
76	return ($key) ? $key : NULL;
77	}
78
79	/**
80	* __filter
81	*
82	* Parses the selection criteria, extracts the database rows that match those criteria, and
83	* returns that subset of rows.
84	*
85	* @access private
86	* @param mixed[] $database The range of cells that makes up the list or database.
87	* A database is a list of related data in which rows of related
88	* information are records, and columns of data are fields. The
89	* first row of the list contains labels for each column.
90	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
91	* You can use any range for the criteria argument, as long as it
92	* includes at least one column label and at least one cell below
93	* the column label in which you specify a condition for the
94	* column.
95	* @return array of mixed
96	*
97	*/
98	private static function __filter($database,$criteria) {
99	$fieldNames = array_shift($database);
100	$criteriaNames = array_shift($criteria);
101
102	// Convert the criteria into a set of AND/OR conditions with [:placeholders]
103	$testConditions = $testValues = array();
104	$testConditionsCount = 0;
105	foreach($criteriaNames as $key => $criteriaName) {
106	$testCondition = array();
107	$testConditionCount = 0;
108	foreach($criteria as $row => $criterion) {
109	if ($criterion[$key] > '') {
110	$testCondition[] = '[:'.$criteriaName.']'.PHPExcel_Calculation_Functions::_ifCondition($criterion[$key]);
111	$testConditionCount++;
112	}
113	}
114	if ($testConditionCount > 1) {
115	$testConditions[] = 'OR('.implode(',',$testCondition).')';
116	$testConditionsCount++;
117	} elseif($testConditionCount == 1) {
118	$testConditions[] = $testCondition[0];
119	$testConditionsCount++;
120	}
121	}
122
123	if ($testConditionsCount > 1) {
124	$testConditionSet = 'AND('.implode(',',$testConditions).')';
125	} elseif($testConditionsCount == 1) {
126	$testConditionSet = $testConditions[0];
127	}
128
129	// Loop through each row of the database
130	foreach($database as $dataRow => $dataValues) {
131	// Substitute actual values from the database row for our [:placeholders]
132	$testConditionList = $testConditionSet;
133	foreach($criteriaNames as $key => $criteriaName) {
134	$k = array_search($criteriaName,$fieldNames);
135	if (isset($dataValues[$k])) {
136	$dataValue = $dataValues[$k];
137	$dataValue = (is_string($dataValue)) ? PHPExcel_Calculation::_wrapResult(strtoupper($dataValue)) : $dataValue;
138	$testConditionList = str_replace('[:'.$criteriaName.']',$dataValue,$testConditionList);
139	}
140	}
141	// evaluate the criteria against the row data
142	$result = PHPExcel_Calculation::getInstance()->_calculateFormulaValue('='.$testConditionList);
143	// If the row failed to meet the criteria, remove it from the database
144	if (!$result) {
145	unset($database[$dataRow]);
146	}
147	}
148
149	return $database;
150	}
151
152
153	/**
154	* DAVERAGE
155	*
156	* Averages the values in a column of a list or database that match conditions you specify.
157	*
158	* Excel Function:
159	* DAVERAGE(database,field,criteria)
160	*
161	* @access public
162	* @category Database Functions
163	* @param mixed[] $database The range of cells that makes up the list or database.
164	* A database is a list of related data in which rows of related
165	* information are records, and columns of data are fields. The
166	* first row of the list contains labels for each column.
167	* @param string\|integer $field Indicates which column is used in the function. Enter the
168	* column label enclosed between double quotation marks, such as
169	* "Age" or "Yield," or a number (without quotation marks) that
170	* represents the position of the column within the list: 1 for
171	* the first column, 2 for the second column, and so on.
172	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
173	* You can use any range for the criteria argument, as long as it
174	* includes at least one column label and at least one cell below
175	* the column label in which you specify a condition for the
176	* column.
177	* @return float
178	*
179	*/
180	public static function DAVERAGE($database,$field,$criteria) {
181	$field = self::__fieldExtract($database,$field);
182	if (is_null($field)) {
183	return NULL;
184	}
185	// reduce the database to a set of rows that match all the criteria
186	$database = self::__filter($database,$criteria);
187	// extract an array of values for the requested column
188	$colData = array();
189	foreach($database as $row) {
190	$colData[] = $row[$field];
191	}
192
193	// Return
194	return PHPExcel_Calculation_Statistical::AVERAGE($colData);
195	} // function DAVERAGE()
196
197
198	/**
199	* DCOUNT
200	*
201	* Counts the cells that contain numbers in a column of a list or database that match conditions
202	* that you specify.
203	*
204	* Excel Function:
205	* DCOUNT(database,[field],criteria)
206	*
207	* Excel Function:
208	* DAVERAGE(database,field,criteria)
209	*
210	* @access public
211	* @category Database Functions
212	* @param mixed[] $database The range of cells that makes up the list or database.
213	* A database is a list of related data in which rows of related
214	* information are records, and columns of data are fields. The
215	* first row of the list contains labels for each column.
216	* @param string\|integer $field Indicates which column is used in the function. Enter the
217	* column label enclosed between double quotation marks, such as
218	* "Age" or "Yield," or a number (without quotation marks) that
219	* represents the position of the column within the list: 1 for
220	* the first column, 2 for the second column, and so on.
221	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
222	* You can use any range for the criteria argument, as long as it
223	* includes at least one column label and at least one cell below
224	* the column label in which you specify a condition for the
225	* column.
226	* @return integer
227	*
228	* @TODO The field argument is optional. If field is omitted, DCOUNT counts all records in the
229	* database that match the criteria.
230	*
231	*/
232	public static function DCOUNT($database,$field,$criteria) {
233	$field = self::__fieldExtract($database,$field);
234	if (is_null($field)) {
235	return NULL;
236	}
237
238	// reduce the database to a set of rows that match all the criteria
239	$database = self::__filter($database,$criteria);
240	// extract an array of values for the requested column
241	$colData = array();
242	foreach($database as $row) {
243	$colData[] = $row[$field];
244	}
245
246	// Return
247	return PHPExcel_Calculation_Statistical::COUNT($colData);
248	} // function DCOUNT()
249
250
251	/**
252	* DCOUNTA
253	*
254	* Counts the nonblank cells in a column of a list or database that match conditions that you specify.
255	*
256	* Excel Function:
257	* DCOUNTA(database,[field],criteria)
258	*
259	* @access public
260	* @category Database Functions
261	* @param mixed[] $database The range of cells that makes up the list or database.
262	* A database is a list of related data in which rows of related
263	* information are records, and columns of data are fields. The
264	* first row of the list contains labels for each column.
265	* @param string\|integer $field Indicates which column is used in the function. Enter the
266	* column label enclosed between double quotation marks, such as
267	* "Age" or "Yield," or a number (without quotation marks) that
268	* represents the position of the column within the list: 1 for
269	* the first column, 2 for the second column, and so on.
270	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
271	* You can use any range for the criteria argument, as long as it
272	* includes at least one column label and at least one cell below
273	* the column label in which you specify a condition for the
274	* column.
275	* @return integer
276	*
277	* @TODO The field argument is optional. If field is omitted, DCOUNTA counts all records in the
278	* database that match the criteria.
279	*
280	*/
281	public static function DCOUNTA($database,$field,$criteria) {
282	$field = self::__fieldExtract($database,$field);
283	if (is_null($field)) {
284	return NULL;
285	}
286
287	// reduce the database to a set of rows that match all the criteria
288	$database = self::__filter($database,$criteria);
289	// extract an array of values for the requested column
290	$colData = array();
291	foreach($database as $row) {
292	$colData[] = $row[$field];
293	}
294
295	// Return
296	return PHPExcel_Calculation_Statistical::COUNTA($colData);
297	} // function DCOUNTA()
298
299
300	/**
301	* DGET
302	*
303	* Extracts a single value from a column of a list or database that matches conditions that you
304	* specify.
305	*
306	* Excel Function:
307	* DGET(database,field,criteria)
308	*
309	* @access public
310	* @category Database Functions
311	* @param mixed[] $database The range of cells that makes up the list or database.
312	* A database is a list of related data in which rows of related
313	* information are records, and columns of data are fields. The
314	* first row of the list contains labels for each column.
315	* @param string\|integer $field Indicates which column is used in the function. Enter the
316	* column label enclosed between double quotation marks, such as
317	* "Age" or "Yield," or a number (without quotation marks) that
318	* represents the position of the column within the list: 1 for
319	* the first column, 2 for the second column, and so on.
320	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
321	* You can use any range for the criteria argument, as long as it
322	* includes at least one column label and at least one cell below
323	* the column label in which you specify a condition for the
324	* column.
325	* @return mixed
326	*
327	*/
328	public static function DGET($database,$field,$criteria) {
329	$field = self::__fieldExtract($database,$field);
330	if (is_null($field)) {
331	return NULL;
332	}
333
334	// reduce the database to a set of rows that match all the criteria
335	$database = self::__filter($database,$criteria);
336	// extract an array of values for the requested column
337	$colData = array();
338	foreach($database as $row) {
339	$colData[] = $row[$field];
340	}
341
342	// Return
343	if (count($colData) > 1) {
344	return PHPExcel_Calculation_Functions::NaN();
345	}
346
347	return $colData[0];
348	} // function DGET()
349
350
351	/**
352	* DMAX
353	*
354	* Returns the largest number in a column of a list or database that matches conditions you that
355	* specify.
356	*
357	* Excel Function:
358	* DMAX(database,field,criteria)
359	*
360	* @access public
361	* @category Database Functions
362	* @param mixed[] $database The range of cells that makes up the list or database.
363	* A database is a list of related data in which rows of related
364	* information are records, and columns of data are fields. The
365	* first row of the list contains labels for each column.
366	* @param string\|integer $field Indicates which column is used in the function. Enter the
367	* column label enclosed between double quotation marks, such as
368	* "Age" or "Yield," or a number (without quotation marks) that
369	* represents the position of the column within the list: 1 for
370	* the first column, 2 for the second column, and so on.
371	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
372	* You can use any range for the criteria argument, as long as it
373	* includes at least one column label and at least one cell below
374	* the column label in which you specify a condition for the
375	* column.
376	* @return float
377	*
378	*/
379	public static function DMAX($database,$field,$criteria) {
380	$field = self::__fieldExtract($database,$field);
381	if (is_null($field)) {
382	return NULL;
383	}
384
385	// reduce the database to a set of rows that match all the criteria
386	$database = self::__filter($database,$criteria);
387	// extract an array of values for the requested column
388	$colData = array();
389	foreach($database as $row) {
390	$colData[] = $row[$field];
391	}
392
393	// Return
394	return PHPExcel_Calculation_Statistical::MAX($colData);
395	} // function DMAX()
396
397
398	/**
399	* DMIN
400	*
401	* Returns the smallest number in a column of a list or database that matches conditions you that
402	* specify.
403	*
404	* Excel Function:
405	* DMIN(database,field,criteria)
406	*
407	* @access public
408	* @category Database Functions
409	* @param mixed[] $database The range of cells that makes up the list or database.
410	* A database is a list of related data in which rows of related
411	* information are records, and columns of data are fields. The
412	* first row of the list contains labels for each column.
413	* @param string\|integer $field Indicates which column is used in the function. Enter the
414	* column label enclosed between double quotation marks, such as
415	* "Age" or "Yield," or a number (without quotation marks) that
416	* represents the position of the column within the list: 1 for
417	* the first column, 2 for the second column, and so on.
418	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
419	* You can use any range for the criteria argument, as long as it
420	* includes at least one column label and at least one cell below
421	* the column label in which you specify a condition for the
422	* column.
423	* @return float
424	*
425	*/
426	public static function DMIN($database,$field,$criteria) {
427	$field = self::__fieldExtract($database,$field);
428	if (is_null($field)) {
429	return NULL;
430	}
431
432	// reduce the database to a set of rows that match all the criteria
433	$database = self::__filter($database,$criteria);
434	// extract an array of values for the requested column
435	$colData = array();
436	foreach($database as $row) {
437	$colData[] = $row[$field];
438	}
439
440	// Return
441	return PHPExcel_Calculation_Statistical::MIN($colData);
442	} // function DMIN()
443
444
445	/**
446	* DPRODUCT
447	*
448	* Multiplies the values in a column of a list or database that match conditions that you specify.
449	*
450	* Excel Function:
451	* DPRODUCT(database,field,criteria)
452	*
453	* @access public
454	* @category Database Functions
455	* @param mixed[] $database The range of cells that makes up the list or database.
456	* A database is a list of related data in which rows of related
457	* information are records, and columns of data are fields. The
458	* first row of the list contains labels for each column.
459	* @param string\|integer $field Indicates which column is used in the function. Enter the
460	* column label enclosed between double quotation marks, such as
461	* "Age" or "Yield," or a number (without quotation marks) that
462	* represents the position of the column within the list: 1 for
463	* the first column, 2 for the second column, and so on.
464	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
465	* You can use any range for the criteria argument, as long as it
466	* includes at least one column label and at least one cell below
467	* the column label in which you specify a condition for the
468	* column.
469	* @return float
470	*
471	*/
472	public static function DPRODUCT($database,$field,$criteria) {
473	$field = self::__fieldExtract($database,$field);
474	if (is_null($field)) {
475	return NULL;
476	}
477
478	// reduce the database to a set of rows that match all the criteria
479	$database = self::__filter($database,$criteria);
480	// extract an array of values for the requested column
481	$colData = array();
482	foreach($database as $row) {
483	$colData[] = $row[$field];
484	}
485
486	// Return
487	return PHPExcel_Calculation_MathTrig::PRODUCT($colData);
488	} // function DPRODUCT()
489
490
491	/**
492	* DSTDEV
493	*
494	* Estimates the standard deviation of a population based on a sample by using the numbers in a
495	* column of a list or database that match conditions that you specify.
496	*
497	* Excel Function:
498	* DSTDEV(database,field,criteria)
499	*
500	* @access public
501	* @category Database Functions
502	* @param mixed[] $database The range of cells that makes up the list or database.
503	* A database is a list of related data in which rows of related
504	* information are records, and columns of data are fields. The
505	* first row of the list contains labels for each column.
506	* @param string\|integer $field Indicates which column is used in the function. Enter the
507	* column label enclosed between double quotation marks, such as
508	* "Age" or "Yield," or a number (without quotation marks) that
509	* represents the position of the column within the list: 1 for
510	* the first column, 2 for the second column, and so on.
511	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
512	* You can use any range for the criteria argument, as long as it
513	* includes at least one column label and at least one cell below
514	* the column label in which you specify a condition for the
515	* column.
516	* @return float
517	*
518	*/
519	public static function DSTDEV($database,$field,$criteria) {
520	$field = self::__fieldExtract($database,$field);
521	if (is_null($field)) {
522	return NULL;
523	}
524
525	// reduce the database to a set of rows that match all the criteria
526	$database = self::__filter($database,$criteria);
527	// extract an array of values for the requested column
528	$colData = array();
529	foreach($database as $row) {
530	$colData[] = $row[$field];
531	}
532
533	// Return
534	return PHPExcel_Calculation_Statistical::STDEV($colData);
535	} // function DSTDEV()
536
537
538	/**
539	* DSTDEVP
540	*
541	* Calculates the standard deviation of a population based on the entire population by using the
542	* numbers in a column of a list or database that match conditions that you specify.
543	*
544	* Excel Function:
545	* DSTDEVP(database,field,criteria)
546	*
547	* @access public
548	* @category Database Functions
549	* @param mixed[] $database The range of cells that makes up the list or database.
550	* A database is a list of related data in which rows of related
551	* information are records, and columns of data are fields. The
552	* first row of the list contains labels for each column.
553	* @param string\|integer $field Indicates which column is used in the function. Enter the
554	* column label enclosed between double quotation marks, such as
555	* "Age" or "Yield," or a number (without quotation marks) that
556	* represents the position of the column within the list: 1 for
557	* the first column, 2 for the second column, and so on.
558	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
559	* You can use any range for the criteria argument, as long as it
560	* includes at least one column label and at least one cell below
561	* the column label in which you specify a condition for the
562	* column.
563	* @return float
564	*
565	*/
566	public static function DSTDEVP($database,$field,$criteria) {
567	$field = self::__fieldExtract($database,$field);
568	if (is_null($field)) {
569	return NULL;
570	}
571
572	// reduce the database to a set of rows that match all the criteria
573	$database = self::__filter($database,$criteria);
574	// extract an array of values for the requested column
575	$colData = array();
576	foreach($database as $row) {
577	$colData[] = $row[$field];
578	}
579
580	// Return
581	return PHPExcel_Calculation_Statistical::STDEVP($colData);
582	} // function DSTDEVP()
583
584
585	/**
586	* DSUM
587	*
588	* Adds the numbers in a column of a list or database that match conditions that you specify.
589	*
590	* Excel Function:
591	* DSUM(database,field,criteria)
592	*
593	* @access public
594	* @category Database Functions
595	* @param mixed[] $database The range of cells that makes up the list or database.
596	* A database is a list of related data in which rows of related
597	* information are records, and columns of data are fields. The
598	* first row of the list contains labels for each column.
599	* @param string\|integer $field Indicates which column is used in the function. Enter the
600	* column label enclosed between double quotation marks, such as
601	* "Age" or "Yield," or a number (without quotation marks) that
602	* represents the position of the column within the list: 1 for
603	* the first column, 2 for the second column, and so on.
604	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
605	* You can use any range for the criteria argument, as long as it
606	* includes at least one column label and at least one cell below
607	* the column label in which you specify a condition for the
608	* column.
609	* @return float
610	*
611	*/
612	public static function DSUM($database,$field,$criteria) {
613	$field = self::__fieldExtract($database,$field);
614	if (is_null($field)) {
615	return NULL;
616	}
617
618	// reduce the database to a set of rows that match all the criteria
619	$database = self::__filter($database,$criteria);
620	// extract an array of values for the requested column
621	$colData = array();
622	foreach($database as $row) {
623	$colData[] = $row[$field];
624	}
625
626	// Return
627	return PHPExcel_Calculation_MathTrig::SUM($colData);
628	} // function DSUM()
629
630
631	/**
632	* DVAR
633	*
634	* Estimates the variance of a population based on a sample by using the numbers in a column
635	* of a list or database that match conditions that you specify.
636	*
637	* Excel Function:
638	* DVAR(database,field,criteria)
639	*
640	* @access public
641	* @category Database Functions
642	* @param mixed[] $database The range of cells that makes up the list or database.
643	* A database is a list of related data in which rows of related
644	* information are records, and columns of data are fields. The
645	* first row of the list contains labels for each column.
646	* @param string\|integer $field Indicates which column is used in the function. Enter the
647	* column label enclosed between double quotation marks, such as
648	* "Age" or "Yield," or a number (without quotation marks) that
649	* represents the position of the column within the list: 1 for
650	* the first column, 2 for the second column, and so on.
651	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
652	* You can use any range for the criteria argument, as long as it
653	* includes at least one column label and at least one cell below
654	* the column label in which you specify a condition for the
655	* column.
656	* @return float
657	*
658	*/
659	public static function DVAR($database,$field,$criteria) {
660	$field = self::__fieldExtract($database,$field);
661	if (is_null($field)) {
662	return NULL;
663	}
664
665	// reduce the database to a set of rows that match all the criteria
666	$database = self::__filter($database,$criteria);
667	// extract an array of values for the requested column
668	$colData = array();
669	foreach($database as $row) {
670	$colData[] = $row[$field];
671	}
672
673	// Return
674	return PHPExcel_Calculation_Statistical::VARFunc($colData);
675	} // function DVAR()
676
677
678	/**
679	* DVARP
680	*
681	* Calculates the variance of a population based on the entire population by using the numbers
682	* in a column of a list or database that match conditions that you specify.
683	*
684	* Excel Function:
685	* DVARP(database,field,criteria)
686	*
687	* @access public
688	* @category Database Functions
689	* @param mixed[] $database The range of cells that makes up the list or database.
690	* A database is a list of related data in which rows of related
691	* information are records, and columns of data are fields. The
692	* first row of the list contains labels for each column.
693	* @param string\|integer $field Indicates which column is used in the function. Enter the
694	* column label enclosed between double quotation marks, such as
695	* "Age" or "Yield," or a number (without quotation marks) that
696	* represents the position of the column within the list: 1 for
697	* the first column, 2 for the second column, and so on.
698	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
699	* You can use any range for the criteria argument, as long as it
700	* includes at least one column label and at least one cell below
701	* the column label in which you specify a condition for the
702	* column.
703	* @return float
704	*
705	*/
706	public static function DVARP($database,$field,$criteria) {
707	$field = self::__fieldExtract($database,$field);
708	if (is_null($field)) {
709	return NULL;
710	}
711
712	// reduce the database to a set of rows that match all the criteria
713	$database = self::__filter($database,$criteria);
714	// extract an array of values for the requested column
715	$colData = array();
716	foreach($database as $row) {
717	$colData[] = $row[$field];
718	}
719
720	// Return
721	return PHPExcel_Calculation_Statistical::VARP($colData);
722	} // function DVARP()
723
724
725	} // class PHPExcel_Calculation_Database

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source: sourcecode/application/libraries/PHPExcel/Calculation/Database.php @ 1

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