# SUMX2PY2 function

Returns the sum of the sum of squares of corresponding values in two arrays. The sum of the sum of squares is a common term in many statistical calculations.

Syntax

SUMX2PY2(array_x,array_y)

Array_x     is the first array or range of values.

Array_y     is the second array or range of values.

Remarks

• The arguments should be either numbers or 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 array_x and array_y have a different number of values, SUMX2PY2 returns the #N/A error value.
• The equation for the sum of the sum of squares is:

Example

The example may be easier to understand if you copy it to a blank worksheet.

1. Create a blank workbook or worksheet.
2. Select the example in the Help topic.

Note   Do not select the row or column headers.

Selecting an example from Help
1. Press CTRL+C.
2. In the worksheet, select cell A1, and press CTRL+V.
3. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.
A B
First array Second array
2 6
3 5
9 11
1 7
8 5
7 4
5 4
Formula Description (Result)
=SUMX2PY2(A2:A8,B2:B8) Sum of the sum of squares of the two arrays above (521)
=SUMX2PY2({2, 3, 9, 1, 8, 7, 5}, {6, 5, 11, 7, 5, 4, 4}) Sum of the sum of squares of the two arrays constants (521)

Applies to:
Excel 2007