[289] | 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 |
---|