Calculates nice positions on a plane for drawing shapes

Usage

morphospace_positions(
  xy,
  pos.shp = c("range", "full", "circle", "xy", "range_axes", "full_axes")[1],
  nb.shp = 12,
  nr.shp = 6,
  nc.shp = 5,
  circle.r.shp
)

Arguments

xy: a matrix of points typically from a PCA or other multivariate method on which morphospace can be calculated
pos.shp: how shapes should be positionned: range of xy, full extent of the plane, circle as a rosewind, on xy values provided, range_axes on the range of xy but on the axes, full_axes same thing but on (0.85) range of the axes. You can also directly pass a matrix (or a data.frame) with columns named ("x", "y").
nb.shp: the total number of shapes
nr.shp: the number of rows to position shapes
nc.shp: the number of cols to position shapes
circle.r.shp: if circle, its radius

Value

a data.frame of positions

Details

See plot.PCA for self-speaking examples