# stats_stat_correlation

(PECL stats >= 1.0.0)

stats_stat_correlation — Returns the Pearson correlation coefficient of two data sets

### 说明

stats_stat_correlation ( array `$arr1` , array `$arr2` ) : float

Returns the Pearson correlation coefficient between `arr1` and `arr2`.

### 参数

`arr1`

  The first array

`arr2`

  The second array

### 返回值

Returns the Pearson correlation coefficient between `arr1` and `arr2`, or `FALSE` on failure.