PEARSON(array1, array2)

Returns the pearson product moment correlation coefficient.

array1The first array of independent values.
array2The second array of dependent values.

Remarks

* The pearson product moment correlation coefficient is a dimensionless index that ranges from -1.0 to 1.0 inclusive and reflects the extent of a linear relationship between two data sets.
* The arguments must be either numbers or names, array constants, 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 "array1" and "array2" are empty, then #N/A is returned.
* If "array1" and "array2" have a different number of data points, then #N/A is returned.
* For the Microsoft documentation refer to support.office.com

 A
1=PEARSON({1,2,3,4},{5,6,7,8}) = 1
2=PEARSON({1,2,3,4},{10,20,30,40}) = 1
3=PEARSON({10,20,30,40},{5,6,7,8}) = 1
4=PEARSON({1,2,3,4},{2,20,30,5}) = 0.187
5=PEARSON({2,20,30,5},{1,2,3,4}) = 0.187
6=PEARSON({"some text",2,3,4},{5,6,7,8}) = 1
7=PEARSON({1,2,3,4},{""}) = #N/A
8=PEARSON({10,20,30,40},{5,6,7,8,9,10}) = #N/A
9=PEARSON({1,2,3,4},) = #VALUE!
10=PEARSON("some text",{5,6,7,8}) = #N/A


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