Description Usage Arguments Details Value Author(s) References Examples
Given a data frame of a multivariate (vegetation) time series this plots a pco ordination using circles with diameters proportional to rate of change (velocity), a pco ordination pco
using cirlces with diameters proportional to change in velocity (acceleration) and three velocity profiles with differently transformed species scores (from quantitative to qualitative).
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pveg |
A data frame of a multivariate (vegetation) time series |
timescale |
A vector of points in time of releves (rows) |
y |
Transformation of species scores: x'= x exp(y) |
... |
Additional arguments passed to plot. |
tlabs |
A vector of releve labels used for annotation of data points in ordinations. See example. |
scal |
A variable for scaling the circles in the ordinations. Default is scal=1. |
x |
An object of class "vvelocity". |
See also pco
for the ordinations used.
An object of class "vvelocity" with at least the following items:
pveg |
The input vegetation data frame |
timescale |
The input time scale |
y |
Transformation of species scores: x'= x exp(y) |
Otto Wildi
Wildi, O. 2017. Data Analysis in Vegetation Ecology. 3rd ed. CABI, Oxfordshire, Boston.
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