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Statistical - CORREL Function
Description
The CORREL function returns the correlation coefficient of the Array1 and Array2 cell ranges. Use the correlation coefficient to determine the relationship between two properties.
Syntax
CORREL (array1, array2)
Arguments
| Argument | Description | Required/Optional |
|---|---|---|
| Array1 | A cell range of values. | Required |
| Array2 | A second cell range of values. | Required |
Notes
The equation for the correlation coefficient is −
$$Correl\left ( X,Y \right )=\frac{\sum \left ( x-\bar{x} \right )\left ( y-\bar{y} \right )}{\sqrt{\sum \left ( x-\bar{x} \right )^2 \sum \left ( y-\bar{y} \right )^2}}$$
Where $\bar{x}$ and $\bar{y}$ are the sample means AVERAGE(array1) and AVERAGE(array2).
If an array or reference argument contains text, logical values, or empty cells, those values are ignored. However, cells with the value zero are included.
If Array1 and Array2 have a different number of data points, CORREL returns the #N/A error value.
If either Array1 or Array2 is empty, or if s (the standard deviation) of their values equals zero, CORREL returns the #DIV/0! error value.
Applicability
Excel 2007, Excel 2010, Excel 2013, Excel 2016
Example
