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Dennis Eichhorn 2020-05-04 22:41:13 +02:00
parent b9fd2d0760
commit 5e04905b8e
1 changed files with 7 additions and 7 deletions
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14
Business/Marketing/Metrics.php
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@ -194,9 +194,9 @@ final class Metrics
* @param array $purchaseProbability Purchase probabilities * @param array $purchaseProbability Purchase probabilities
* *
* @return Matrix [ * @return Matrix [
* [0][0] = probability of buying in period t if customer bought in t = 1 * [0][0] = probability of buying in period t if customer bought in t = 1
* ... * ...
* ] * ]
*/ */
public static function migrationModelPurchaseProbability(int $period, array $purchaseProbability) : Matrix public static function migrationModelPurchaseProbability(int $period, array $purchaseProbability) : Matrix
{ {
@ -220,10 +220,10 @@ final class Metrics
* \end{bmatrix} * \end{bmatrix}
* *
* @return Matrix [ * @return Matrix [
* p1, 1-p1, 0, * p1, 1-p1, 0,
* p2, 0, 1-p2, * p2, 0, 1-p2,
* p3, 0, 1-p3, * p3, 0, 1-p3,
* ] where pi = Probability that customer buys in period i * ] where pi = Probability that customer buys in period i
* *
* @since 1.0.0 * @since 1.0.0
*/ */