RSQ - The function returns the square of the Pearson torque correlation coefficient in Excel

The following article introduces you to the RSQ function - one of the functions in the statistical function group is very popular in Excel.

Description: The function returns the square of the Pearson moment correlation coefficient through data points in known_y's and known_x's.

Syntax: RSQ (known_y's, known_x's)

Inside:

- known_y's : Array or data range, is a required parameter.

- known_x's: Array or range of data points, required.

Attention:

- The value of the argument must be a number, name, array or reference containing numbers.

- Logical values ​​and text number representations when typing directly into the argument list -> still count.

- Arguments that are text or error values ​​cannot be converted to a numeric type -> cause the function to cause an error .

- If the argument is a reference array containing text values ​​or logic -> these values ​​are ignored, but the value 0 is still counted.

- If known_y's and known_x's are empty or have a different number of data points -> the function returns the # N / A error value .

- If known_y's and known_x's contain only 1 data point -> the function returns the # DIV / 0 error value .

- The equation for the Pearson product moment correlation coefficient, r, is:

[r = frac {{sum {left ({x - overline x} right) left ({y - overline y} right)}}} {{sqrt {sum {{{left ({x - overline x} right)} ^ 2} sum {{{left ({y - overline y} right)} ^ 2}}}}}}]

Where x and y are the sample mean AVERAGE (known_x's) and AVERAGE (known_y's).

For example:

Calculate the square of the Pearson product moment correlation coefficient of values ​​in the following data table:

- In the cell to calculate enter the formula : = RSQ (C6: C10, D6: D10)

- Press Enter -> squared the Pearson product moment square coefficient is:

- Where the number of elements of the array x and y is not equal -> the function returns the error value # N / A

- In case of 2 arrays of x and y, there is only 1 element -> the function returns the # DIV / 0 error value .

Above are instructions and some specific examples when using the RSQ function in Excel.

Good luck!