Description Usage Arguments Details Value Author(s) See Also Examples

Sometimes the area under a density curve has to be color shaded, for instance to illustrate a p-value or a specific region under the normal curve.
This function draws a curve corresponding to a function over the interval `[from, to]`

. It can plot also an expression in the variable `xname`

, default `x`

.

1 |

`expr` |
the name of a function, or a |

`col` |
color to fill or shade the shape with. The default is taken from |

`breaks` |
numeric, a vector giving the breakpoints between the distinct areas to be shaded differently. Should be finite as there are no plots with infinite limits. |

`density` |
the density of the lines as needed in polygon. |

`n` |
integer; the number of x values at which to evaluate. Default is 101. |

`xname` |
character string giving the name to be used for the x axis. |

`...` |
the dots are passed on to |

Useful for shading the area under a curve as often needed for explaining significance tests.

A list with components `x`

and `y`

of the points that were drawn is returned invisibly.

Andri Signorell <andri@signorell.net>

1 2 3 4 5 6 |

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