| title | Correlation (MDX) |
|---|---|
| description | Correlation (MDX) |
| ms.date | 02/17/2022 |
| ms.service | sql |
| ms.subservice | analysis-services |
| ms.topic | reference |
| ms.custom | mdx |
Returns the correlation coefficient of x-y pairs of values evaluated over a set.
Correlation( Set_Expression, Numeric_Expression_y [ ,Numeric_Expression_x ] )
Set_Expression
A valid Multidimensional Expressions (MDX) expression that returns a set.
Numeric_Expression_y
A valid numeric expression that is typically a Multidimensional Expressions (MDX) expression of cell coordinates that return a number that represents values for the y-axis.
Numeric_Expression_x
A valid numeric expression that is typically a Multidimensional Expressions (MDX) expression of cell coordinates that return a number that represents values for the x-axis.
The Correlation function calculates the correlation coefficient of two pairs of values by first evaluating the specified set against the first numeric expression to obtain the values for the y-axis. The function then evaluates the specified set against the second numeric expression, if present, to obtain the set of values for the x-axis. If the second numeric expression is not specified, the function uses the current context of the cells in the specified set as the values for the x-axis.
Note
The Correlation function ignores empty cells or cells that contain text or logical values. However, the function includes cells with values of zero.