# Difference between revisions of "RSquare Command"

From GeoGebra Manual

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− | ;RSquare[ <List of Points>,<Function> ] | + | ;RSquare[ <List of Points>, <Function> ] |

− | :Calculates the [[w:Coefficient of determination|coefficient of determination]] R² = 1-SSE/Syy, between the y-values of the points in the list and the function values of the x-values in the list. | + | :Calculates the [[w:Coefficient of determination|coefficient of determination]] ''R² = 1-SSE/Syy'', between the ''y''-values of the points in the list and the function values of the ''x''-values in the list. |

+ | :{{example|1=<div><code><nowiki>RSquare[{(-3, 2), (-2, 1), (-1, 3), (0, 4), (1, 2), (2, 4), (3, 3), (4, 5), (6, 4)}, 0.5x + 2.5]</nowiki></code> yields ''0.28''.</div>}} |

## Revision as of 09:38, 4 September 2013

- RSquare[ <List of Points>, <Function> ]
- Calculates the coefficient of determination
*R² = 1-SSE/Syy*, between the*y*-values of the points in the list and the function values of the*x*-values in the list. **Example:**`RSquare[{(-3, 2), (-2, 1), (-1, 3), (0, 4), (1, 2), (2, 4), (3, 3), (4, 5), (6, 4)}, 0.5x + 2.5]`

yields*0.28*.