If x is a 1-vector or a 3-vector, multiply xyz only
If x is a 4-vector, multiply xyz and diameter by that
TODO Figure out how to document arithemtic functions in one go
Usage
# S3 method for neuron
*(n, x)
# S3 method for neuron
+(n, x)
# S3 method for neuron
-(n, x)
# S3 method for neuron
/(n, x)
Value
modified neuron
Arguments
n
a neuron
x
(a numeric vector to multiply neuron coords in neuron)