Description Usage Arguments Value Examples

View source: R/funs_behavior.r

`straightness`

compute a straightness index between 0 and 1 by making the
ration `L / l`

where `L`

is the cumulated distance between
brokenstick points and and where `l`

the cumulated distance between
each `y`

data points.

1 2 3 | ```
straightness(x, y = NULL, npts = 3)
sinuosity(x, y = NULL, npts = 3)
``` |

`x` |
The x data (time). |

`y` |
The y data (depth). |

`npts` |
The number of points to use. 2 is the minimum (from the start
to the end of data). Each new point adds a step (using the |

`straightness`

returns a number between 0 (maximum sinuosity)
to 1 (maximum straightness). `sinuosity`

is equivalent to
`1 / straightness`

.

1 2 3 | ```
data(exses)
ind(exses)
sunflowerplot(tdrply(straightness, cl = 1:2, ty = '_'), exses$stat$pca)
``` |

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