getR: Get crown radius of a plant
In YplantQMC: Plant Architectural Analysis with Yplant and QuasiMC

Description Usage Arguments Details Value Author(s) See Also

Calculates the crown radius of a plant, given the x,y,z coordinates of the leaves. See Details. Typically not invoked by user, but used by summary.plant3d to estimate crown width.

getR(xyz)

xyz

A matrix or dataframe of xyz coordinates.

The crown radius is the distance from the centre of the plant to the furthest leaf in that direction. This distance is found for four directions (corresponding to the four quadrants). The centre of the plant is found from the average x,y coordinate (and may thus differ from the 'stem' location).

Returns only the mean crown radius of the four quadrants.

Remko Duursma

summary.plant3d,crownhull,Silhouette

YplantQMC documentation built on May 29, 2017, 7:02 p.m.