Difference between revisions of "Documentation/How Tos/Calc: RSQ function"
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| − | : <tt>'''RSQ'''</tt> calculates the square of the Pearson correlation coefficient (which is conventionally given the letter <i>r</i>, hence "<i>r</i> squared"). See the <tt>* [[Documentation/How_Tos/Calc: PEARSON function|PEARSON]] | + | : <tt>'''RSQ'''</tt> calculates the square of the Pearson correlation coefficient (which is conventionally given the letter <i>r</i>, hence "<i>r</i> squared"). See the <tt>* [[Documentation/How_Tos/Calc: PEARSON function|PEARSON]]</tt> function for more details. |
: <tt>'''RSQ'''</tt> indicates how much of the variance in <tt>'''y'''</tt> is attributable to the variance in <tt>'''x'''</tt>. | : <tt>'''RSQ'''</tt> indicates how much of the variance in <tt>'''y'''</tt> is attributable to the variance in <tt>'''x'''</tt>. | ||
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{{Documentation/SeeAlso| | {{Documentation/SeeAlso| | ||
| − | * [[Documentation/How_Tos/Calc: CORREL function|CORREL]] | + | * [[Documentation/How_Tos/Calc: CORREL function|CORREL]] |
* [[Documentation/How_Tos/Calc: PEARSON function|PEARSON]] | * [[Documentation/How_Tos/Calc: PEARSON function|PEARSON]] | ||
* [[Documentation/How_Tos/Using Arrays|Array formulas]] | * [[Documentation/How_Tos/Using Arrays|Array formulas]] | ||
Revision as of 14:37, 26 February 2009
RSQ
Returns the square of the Pearson correlation coefficient of two sets of data.
Syntax:
RSQ(x; y)
- where x and y are ranges or arrays containing the two sets of data.
- Any text or empty entries are ignored.
- RSQ calculates the square of the Pearson correlation coefficient (which is conventionally given the letter r, hence "r squared"). See the * PEARSON function for more details.
- RSQ indicates how much of the variance in y is attributable to the variance in x.
- Advanced topic:
- The parameters x and y are always evaluated as array formulas.
Example:
RSQ(A1:A30; B1:B30)
- returns the square of the Pearson correlation coefficient for the two sets of data in A1:A30 and B1:B30.
