Construct class limits vectors
setbreaks(nclass, maxSize, base = NULL, kap = 1, sizeType = c("linear",
"exp"))number of classes
maximum of size values
constant for size class construction
constant for shape class construction
either linear or exp, default is linear
list of class limits vectors
The function constructs the class limits for the size, shape and orientation parameters.
One can either define linear class limits of 'size' as
\(a_i=i\delta, \delta=maxSize/M \) or using exponentially increasing limits: \(base^i, i=1,\dots,M\).
The orientation classes are defined as \(\theta_j=j\omega, \omega=\pi/(2N), j=1,\dots,N\) in the range
\([0,\pi/2]\), where \(M,N\) are the number of size classes and the number of orientation classes, respectively.
Argument base must not be NULL if sizeType equals "exp".