Functions for Sholl analysis of neuronal skeletons

sholl_data(neuron, start = colMeans(xyzmatrix(neuron)),
  starting.radius = radius.step, ending.radius = NULL,
  radius.step = ending.radius/100)

Arguments

neuron

a neuron object

start

the origin from which spheres are grown for the Sholl analysis

starting.radius

the radius of the first sphere. Defaults to the radius step

ending.radius

the radius of the last sphere. If NULL the distance to the furthest dendritic point from the start point is taken

radius.step

the change in radius between successive spheres. Defaults to one 100th of the radius of the ending sphere

Value

a data.frame of spheres radii and the number of dendritic intersections at each radius