Description Usage Arguments Value See Also
Plots an x-y, time-x, time-y track of a potential migration process and prompts the user to click on the figure to obtain initial estimates of range centroids and timing of start and end of migrations.
1 | locate_shift(time, x, y, n.clust = 2, ...)
|
time |
time (can be a |
x |
x and y coordinates. Can be two separate vectors OR a complex "x" OR a two-column matrix/date-frame. |
y |
see x |
n.clust |
number of ranges (either 2 or 3) |
... |
additional parameters to pass to plot functions |
a named vector of initial estimates:
if n.clust = 2
, c(x1, x2, y1, y2, t1, dt)
if n.clust = 3
, c(x1, x2, x3, y1, y2, y3, t1, t2, dt1, dt2)
quickfit
, codelocator
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