WorksheetFunction.Covar Method
Excel Developer Reference |
Returns covariance, the average of the products of deviations for each data point pair.
Syntax
expression.Covar(Arg1, Arg2)
expression A variable that represents a WorksheetFunction object.
Parameters
Name | Required/Optional | Data Type | Description |
---|---|---|---|
Arg1 | Required | Variant | The first cell range of integers. |
Arg2 | Required | Variant | The second cell range of integers. |
Return Value
Double
Remarks
Use covariance to determine the relationship between two data sets. For example, you can examine whether greater income accompanies greater levels of education.
The arguments must either be numbers or be names, arrays, or references that contain numbers.
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
Arg1
If either
Arg1
The covariance is:
where x and y are the sample means AVERAGE(array1) and AVERAGE(array2), and n is the sample size.
See Also