From a multivariate time series of vegetation data this first computes a distance matrix (`vegdist`

, euclidean). The first plot is a graphical representation of the full distance matrix, the second a profile of change per time step of different length (velocity).

1 2 3 4 5 6 7 |

`veg` |
This is a vegetation data frame, releves are rows, species columns. Releves are considered a time series. |

`timescale` |
A vector of points in time of releves (rows) |

`orders` |
Orders used for printing the velocity profile, i.e., the number of time steps used for calculating speed (rate of change per time unit). |

`y` |
Transformation of species scores: x'= x exp(y) |

`adjust` |
Parameter adjust=TRUE re-scales releves to vector sum=100 percent (assuming cover |

`x` |
An object of class "speedprof". |

`...` |
Parameter out.seq, the plotting interval |

An object of class "SNPsm" with at least the following items:

`nrel ` |
The number of releves |

`dmatrix ` |
The distance matrix |

`timescale ` |
The time scale |

`orders ` |
Time step lengths considered for plotting the profile |

Otto Wildi

Wildi, O. 2013. Data Analysis in Vegetation Ecology. 2nd ed. Wiley-Blackwell, Chichester.

1 2 3 |

Questions? Problems? Suggestions? Tweet to @rdrrHQ or email at ian@mutexlabs.com.

All documentation is copyright its authors; we didn't write any of that.