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  1. <!DOCTYPE html><html lang="en">

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  6. <title>PHPExcel classes » \trendClass</title>

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  21.                                     API Documentation <b class="caret"></b></a><ul class="dropdown-menu">

  22. <li><a>Packages</a></li>

  23. <li><a href="../packages/Default.html"><i class="icon-folder-open"></i> Default</a></li>

  24. <li><a href="../packages/JAMA.html"><i class="icon-folder-open"></i> JAMA</a></li>

  25. <li><a href="../packages/JAMA%0D%0ACholesky%20decomposition%20class%0D%0AFor%20a%20symmetric,%20positive%20definite%20matrix%20A,%20the%20Cholesky%20decomposition%0D%0Ais%20an%20lower%20triangular%20matrix%20L%20so%20that%20A%20=%20L*L'.html"><i class="icon-folder-open"></i> JAMA

  26. Cholesky decomposition class

  27. For a symmetric, positive definite matrix A, the Cholesky decomposition

  28. is an lower triangular matrix L so that A = L*L'</a></li>

  29. <li><a href="../packages/JAMA%0D%0AClass%20to%20obtain%20eigenvalues%20and%20eigenvectors%20of%20a%20real%20matrix.html"><i class="icon-folder-open"></i> JAMA

  30. Class to obtain eigenvalues and eigenvectors of a real matrix</a></li>

  31. <li><a href="../packages/JAMA%0D%0AError%20handling.html"><i class="icon-folder-open"></i> JAMA

  32. Error handling</a></li>

  33. <li><a href="../packages/JAMA%0D%0AFor%20an%20m-by-n%20matrix%20A%20with%20m%20&gt;=%20n,%20the%20LU%20decomposition%20is%20an%20m-by-n%0D%0Aunit%20lower%20triangular%20matrix%20L,%20an%20n-by-n%20upper%20triangular%20matrix%20U,%0D%0Aand%20a%20permutation%20vector%20piv%20of%20length%20m%20so%20that%20A(piv,:)%20=%20L*U.html"><i class="icon-folder-open"></i> JAMA

  34. For an m-by-n matrix A with m &gt;= n, the LU decomposition is an m-by-n

  35. unit lower triangular matrix L, an n-by-n upper triangular matrix U,

  36. and a permutation vector piv of length m so that A(piv,:) = L*U</a></li>

  37. <li><a href="../packages/JAMA%0D%0AFor%20an%20m-by-n%20matrix%20A%20with%20m%20&gt;=%20n,%20the%20QR%20decomposition%20is%20an%20m-by-n%0D%0Aorthogonal%20matrix%20Q%20and%20an%20n-by-n%20upper%20triangular%20matrix%20R%20so%20that%0D%0AA%20=%20Q*R.html"><i class="icon-folder-open"></i> JAMA

  38. For an m-by-n matrix A with m &gt;= n, the QR decomposition is an m-by-n

  39. orthogonal matrix Q and an n-by-n upper triangular matrix R so that

  40. A = Q*R</a></li>

  41. <li><a href="../packages/JAMA%0D%0AFor%20an%20m-by-n%20matrix%20A%20with%20m%20&gt;=%20n,%20the%20singular%20value%20decomposition%20is%0D%0Aan%20m-by-n%20orthogonal%20matrix%20U,%20an%20n-by-n%20diagonal%20matrix%20S,%20and%0D%0Aan%20n-by-n%20orthogonal%20matrix%20V%20so%20that%20A%20=%20U*S*V'.html"><i class="icon-folder-open"></i> JAMA

  42. For an m-by-n matrix A with m &gt;= n, the singular value decomposition is

  43. an m-by-n orthogonal matrix U, an n-by-n diagonal matrix S, and

  44. an n-by-n orthogonal matrix V so that A = U*S*V'</a></li>

  45. <li><a href="../packages/JAMA%0D%0APythagorean%20Theorem:%0D%0Aa%20=%203%0D%0Ab%20=%204%0D%0Ar%20=%20sqrt(square(a)%20+%20square(b))%0D%0Ar%20=%205%0D%0Ar%20=%20sqrt(a%5E2%20+%20b%5E2)%20without%20under.overflow.html"><i class="icon-folder-open"></i> JAMA

  46. Pythagorean Theorem:

  47. a = 3

  48. b = 4

  49. r = sqrt(square(a) + square(b))

  50. r = 5

  51. r = sqrt(a^2 + b^2) without under/overflow</a></li>

  52. <li><a href="../packages/PHPExcel.html"><i class="icon-folder-open"></i> PHPExcel</a></li>

  53. </ul>

  54. </li>

  55. <li class="dropdown" id="charts-menu">

  56. <a href="#charts" class="dropdown-toggle" data-toggle="dropdown">

  57.                                     Charts <b class="caret"></b></a><ul class="dropdown-menu"><li><a href="../graph_class.html"><i class="icon-list-alt"></i> Class hierarchy diagram</a></li></ul>

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  61.                                     Reports <b class="caret"></b></a><ul class="dropdown-menu">

  62. <li><a href="../errors.html"><i class="icon-remove-sign"></i> Errors 

  63.                 <span class="label label-info">551</span></a></li>

  64. <li><a href="../markers.html"><i class="icon-map-marker"></i> Markers 

  65.                 <ul>

  66. <li>todo 

  67.                 <span class="label label-info">19</span>

  68. </li>

  69. <li>fixme 

  70.                 <span class="label label-info">10</span>

  71. </li>

  72. </ul></a></li>

  73. <li><a href="../deprecated.html"><i class="icon-stop"></i> Deprecated elements 

  74.                 <span class="label label-info">12</span></a></li>

  75. </ul>

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  79. <div class="go_to_top"><a href="#___" style="color: inherit">Back to top  <i class="icon-upload icon-white"></i></a></div>

  80. </div>

  81. <div id="___" class="container">

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  83.                             Javascript is disabled; several features are only available

  84.                             if Javascript is enabled.

  85.                         </div></noscript>

  86. <div class="row">

  87. <div class="span4">

  88. <span class="btn-group visibility" data-toggle="buttons-checkbox"><button class="btn public active" title="Show public elements">Public</button><button class="btn protected" title="Show protected elements">Protected</button><button class="btn private" title="Show private elements">Private</button><button class="btn inherited active" title="Show inherited elements">Inherited</button></span><div class="btn-group view pull-right" data-toggle="buttons-radio">

  89. <button class="btn details" title="Show descriptions and method names"><i class="icon-list"></i></button><button class="btn simple" title="Show only method names"><i class="icon-align-justify"></i></button>

  90. </div>

  91. <ul class="side-nav nav nav-list">

  92. <li class="nav-header">

  93. <i class="icon-custom icon-method"></i> Methods

  94.                     <ul><li class="method public "><a href="#method_calculate" title="calculate :: "><span class="description">calculate()

  95.         </span><pre>calculate()</pre></a></li></ul>

  96. </li>

  97. <li class="nav-header">

  98. <i class="icon-custom icon-property"></i> Properties

  99.                     <ul></ul>

  100. </li>

  101. <li class="nav-header private">» Private

  102.                     <ul>

  103. <li class="property private "><a href="#property__trendCache" title="$_trendCache :: Cached results for each method when trying to identify which provides the best fit"><span class="description"></span><pre>$_trendCache</pre></a></li>

  104. <li class="property private "><a href="#property__trendTypePolyOrders" title="$_trendTypePolyOrders :: Names of the best-fit trend polynomial orders"><span class="description"></span><pre>$_trendTypePolyOrders</pre></a></li>

  105. <li class="property private "><a href="#property__trendTypes" title="$_trendTypes :: Names of the best-fit trend analysis methods"><span class="description"></span><pre>$_trendTypes</pre></a></li>

  106. </ul>

  107. </li>

  108. <li class="nav-header">

  109. <i class="icon-custom icon-constant"></i> Constants

  110.                     <ul>

  111. <li class="constant  "><a href="#constant_TREND_BEST_FIT" title="TREND_BEST_FIT :: "><span class="description">TREND_BEST_FIT</span><pre>TREND_BEST_FIT</pre></a></li>

  112. <li class="constant  "><a href="#constant_TREND_BEST_FIT_NO_POLY" title="TREND_BEST_FIT_NO_POLY :: "><span class="description">TREND_BEST_FIT_NO_POLY</span><pre>TREND_BEST_FIT_NO_POLY</pre></a></li>

  113. <li class="constant  "><a href="#constant_TREND_EXPONENTIAL" title="TREND_EXPONENTIAL :: "><span class="description">TREND_EXPONENTIAL</span><pre>TREND_EXPONENTIAL</pre></a></li>

  114. <li class="constant  "><a href="#constant_TREND_LINEAR" title="TREND_LINEAR :: "><span class="description">TREND_LINEAR</span><pre>TREND_LINEAR</pre></a></li>

  115. <li class="constant  "><a href="#constant_TREND_LOGARITHMIC" title="TREND_LOGARITHMIC :: "><span class="description">TREND_LOGARITHMIC</span><pre>TREND_LOGARITHMIC</pre></a></li>

  116. <li class="constant  "><a href="#constant_TREND_POLYNOMIAL_2" title="TREND_POLYNOMIAL_2 :: "><span class="description">TREND_POLYNOMIAL_2</span><pre>TREND_POLYNOMIAL_2</pre></a></li>

  117. <li class="constant  "><a href="#constant_TREND_POLYNOMIAL_3" title="TREND_POLYNOMIAL_3 :: "><span class="description">TREND_POLYNOMIAL_3</span><pre>TREND_POLYNOMIAL_3</pre></a></li>

  118. <li class="constant  "><a href="#constant_TREND_POLYNOMIAL_4" title="TREND_POLYNOMIAL_4 :: "><span class="description">TREND_POLYNOMIAL_4</span><pre>TREND_POLYNOMIAL_4</pre></a></li>

  119. <li class="constant  "><a href="#constant_TREND_POLYNOMIAL_5" title="TREND_POLYNOMIAL_5 :: "><span class="description">TREND_POLYNOMIAL_5</span><pre>TREND_POLYNOMIAL_5</pre></a></li>

  120. <li class="constant  "><a href="#constant_TREND_POLYNOMIAL_6" title="TREND_POLYNOMIAL_6 :: "><span class="description">TREND_POLYNOMIAL_6</span><pre>TREND_POLYNOMIAL_6</pre></a></li>

  121. <li class="constant  "><a href="#constant_TREND_POWER" title="TREND_POWER :: "><span class="description">TREND_POWER</span><pre>TREND_POWER</pre></a></li>

  122. </ul>

  123. </li>

  124. </ul>

  125. </div>

  126. <div class="span8">

  127. <a id="\trendClass"></a><ul class="breadcrumb">

  128. <li>

  129. <a href="../index.html"><i class="icon-custom icon-class"></i></a><span class="divider">\</span>

  130. </li>

  131. <li><a href="../namespaces/global.html">global</a></li>

  132. <li class="active">

  133. <span class="divider">\</span><a href="../classes/trendClass.html">trendClass</a>

  134. </li>

  135. </ul>

  136. <div class="element class">

  137. <p class="short_description">PHPExcel_trendClass</p>

  138. <div class="details">

  139. <div class="long_description"></div>

  140. <table class="table table-bordered">

  141. <tr>

  142. <th>category</th>

  143. <td>PHPExcel</td>

  144. </tr>

  145. <tr>

  146. <th>package</th>

  147. <td><a href="../packages/PHPExcel.Shared.Trend.html">PHPExcel_Shared_Trend</a></td>

  148. </tr>

  149. <tr>

  150. <th>copyright</th>

  151. <td>Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)</td>

  152. </tr>

  153. </table>

  154. <h3>

  155. <i class="icon-custom icon-method"></i> Methods</h3>

  156. <a id="method_calculate"></a><div class="element clickable method public method_calculate" data-toggle="collapse" data-target=".method_calculate .collapse">

  157. <h2>calculate()

  158.         </h2>

  159. <pre>calculate($trendType, $yValues, $xValues, $const) </pre>

  160. <div class="labels"><span class="label">Static</span></div>

  161. <div class="row collapse"><div class="detail-description">

  162. <div class="long_description"></div>

  163. <h3>Parameters</h3>

  164. <div class="subelement argument"><h4>$trendType</h4></div>

  165. <div class="subelement argument"><h4>$yValues</h4></div>

  166. <div class="subelement argument"><h4>$xValues</h4></div>

  167. <div class="subelement argument"><h4>$const</h4></div>

  168. </div></div>

  169. </div>

  170. <h3>

  171. <i class="icon-custom icon-property"></i> Properties</h3>

  172. <a id="property__trendCache"> </a><div class="element clickable property private property__trendCache" data-toggle="collapse" data-target=".property__trendCache .collapse">

  173. <h2></h2>

  174. <pre>$_trendCache : <a href="PHPExcel.Shared.trend.bestFitClass.html#%5CPHPExcel_Best_Fit">\PHPExcel_Best_Fit[]</a></pre>

  175. <div class="labels"></div>

  176. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  177. </div>

  178. <a id="property__trendTypePolyOrders"> </a><div class="element clickable property private property__trendTypePolyOrders" data-toggle="collapse" data-target=".property__trendTypePolyOrders .collapse">

  179. <h2></h2>

  180. <pre>$_trendTypePolyOrders : string[]</pre>

  181. <div class="labels"></div>

  182. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  183. </div>

  184. <a id="property__trendTypes"> </a><div class="element clickable property private property__trendTypes" data-toggle="collapse" data-target=".property__trendTypes .collapse">

  185. <h2></h2>

  186. <pre>$_trendTypes : string[]</pre>

  187. <div class="labels"></div>

  188. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  189. </div>

  190. <h3>

  191. <i class="icon-custom icon-constant"></i> Constants</h3>

  192. <a id="constant_TREND_BEST_FIT"> </a><div class="element clickable constant  constant_TREND_BEST_FIT" data-toggle="collapse" data-target=".constant_TREND_BEST_FIT .collapse">

  193. <h2>TREND_BEST_FIT</h2>

  194. <pre>TREND_BEST_FIT </pre>

  195. <div class="labels"></div>

  196. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  197. </div>

  198. <a id="constant_TREND_BEST_FIT_NO_POLY"> </a><div class="element clickable constant  constant_TREND_BEST_FIT_NO_POLY" data-toggle="collapse" data-target=".constant_TREND_BEST_FIT_NO_POLY .collapse">

  199. <h2>TREND_BEST_FIT_NO_POLY</h2>

  200. <pre>TREND_BEST_FIT_NO_POLY </pre>

  201. <div class="labels"></div>

  202. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  203. </div>

  204. <a id="constant_TREND_EXPONENTIAL"> </a><div class="element clickable constant  constant_TREND_EXPONENTIAL" data-toggle="collapse" data-target=".constant_TREND_EXPONENTIAL .collapse">

  205. <h2>TREND_EXPONENTIAL</h2>

  206. <pre>TREND_EXPONENTIAL </pre>

  207. <div class="labels"></div>

  208. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  209. </div>

  210. <a id="constant_TREND_LINEAR"> </a><div class="element clickable constant  constant_TREND_LINEAR" data-toggle="collapse" data-target=".constant_TREND_LINEAR .collapse">

  211. <h2>TREND_LINEAR</h2>

  212. <pre>TREND_LINEAR </pre>

  213. <div class="labels"></div>

  214. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  215. </div>

  216. <a id="constant_TREND_LOGARITHMIC"> </a><div class="element clickable constant  constant_TREND_LOGARITHMIC" data-toggle="collapse" data-target=".constant_TREND_LOGARITHMIC .collapse">

  217. <h2>TREND_LOGARITHMIC</h2>

  218. <pre>TREND_LOGARITHMIC </pre>

  219. <div class="labels"></div>

  220. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  221. </div>

  222. <a id="constant_TREND_POLYNOMIAL_2"> </a><div class="element clickable constant  constant_TREND_POLYNOMIAL_2" data-toggle="collapse" data-target=".constant_TREND_POLYNOMIAL_2 .collapse">

  223. <h2>TREND_POLYNOMIAL_2</h2>

  224. <pre>TREND_POLYNOMIAL_2 </pre>

  225. <div class="labels"></div>

  226. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  227. </div>

  228. <a id="constant_TREND_POLYNOMIAL_3"> </a><div class="element clickable constant  constant_TREND_POLYNOMIAL_3" data-toggle="collapse" data-target=".constant_TREND_POLYNOMIAL_3 .collapse">

  229. <h2>TREND_POLYNOMIAL_3</h2>

  230. <pre>TREND_POLYNOMIAL_3 </pre>

  231. <div class="labels"></div>

  232. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  233. </div>

  234. <a id="constant_TREND_POLYNOMIAL_4"> </a><div class="element clickable constant  constant_TREND_POLYNOMIAL_4" data-toggle="collapse" data-target=".constant_TREND_POLYNOMIAL_4 .collapse">

  235. <h2>TREND_POLYNOMIAL_4</h2>

  236. <pre>TREND_POLYNOMIAL_4 </pre>

  237. <div class="labels"></div>

  238. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  239. </div>

  240. <a id="constant_TREND_POLYNOMIAL_5"> </a><div class="element clickable constant  constant_TREND_POLYNOMIAL_5" data-toggle="collapse" data-target=".constant_TREND_POLYNOMIAL_5 .collapse">

  241. <h2>TREND_POLYNOMIAL_5</h2>

  242. <pre>TREND_POLYNOMIAL_5 </pre>

  243. <div class="labels"></div>

  244. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  245. </div>

  246. <a id="constant_TREND_POLYNOMIAL_6"> </a><div class="element clickable constant  constant_TREND_POLYNOMIAL_6" data-toggle="collapse" data-target=".constant_TREND_POLYNOMIAL_6 .collapse">

  247. <h2>TREND_POLYNOMIAL_6</h2>

  248. <pre>TREND_POLYNOMIAL_6 </pre>

  249. <div class="labels"></div>

  250. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  251. </div>

  252. <a id="constant_TREND_POWER"> </a><div class="element clickable constant  constant_TREND_POWER" data-toggle="collapse" data-target=".constant_TREND_POWER .collapse">

  253. <h2>TREND_POWER</h2>

  254. <pre>TREND_POWER </pre>

  255. <div class="labels"></div>

  256. <div class="row collapse"><div class="detail-description"><div class="long_description"></div></div></div>

  257. </div>

  258. </div>

  259. </div>

  260. </div>

  261. </div>

  262. <div class="row"><footer class="span12">

  263.             Template is built using <a href="http://twitter.github.com/bootstrap/">Twitter Bootstrap 2</a> and icons provided by <a href="http://glyphicons.com/">Glyphicons</a>.<br>

  264.             Documentation is powered by <a href="http://www.phpdoc.org/">phpDocumentor 2.0.0a12</a> and<br>

  265.             generated on 2014-03-02T15:27:37Z.<br></footer></div>

  266. </div>

  267. </body>

  268. </html>