Description Usage Arguments Value Author(s) References Examples

This is an internal function. `power.r`

computes power for the significance of a product moment correlation.

1 | ```
power.r(n, delta, sig.level = 0.05)
``` |

`n` |
sample size |

`delta` |
population correlation |

`sig.level` |
a numeric contains the significance level (default 0.05) |

Return a numeric containing the statistical power.

Yasuyuki Okumura

Department of Social Psychiatry,

National Institute of Mental Health,

National Center of Neurology and Psychiatry

yokumura@blue.zero.jp

Cohen J (1988). Statistical power analysis for the behavioral sciences (2nd ed). Hillsdale, NJ: Erlbaum.

1 2 | ```
##Cohen (1988) ex.3.1
power.r(n=50, delta=0.3, sig.level=0.05)
``` |

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