| seg.control {segmented} | R Documentation |
Auxiliary function as user interface for 'segmented' fitting. Typically
only used when calling any 'segmented' method (segmented.lm or segmented.glm).
seg.control(toll = 1e-04, it.max = 20, display = FALSE, last = TRUE, maxit.glm = 25)
toll |
positive convergence tolerance. |
it.max |
integer giving the maximal number of iterations. |
display |
logical indicating if output should be produced for each iteration. |
last |
logical indicating if output should include only the last fitted model. |
maxit.glm |
integer giving the maximum number of inner IWLS iterations (see details). |
Fitting a `segmented' model is attained via fitting iteratively standard GLMs. The number of iteration is
governed by it.max, while the (maximum) number of (inner) iterations to fit the GLM at each outer
iteration is fixed via maxit.glm. Usually three-four inner iterations will suffice.
If last=TRUE, the object resulting from segmented.lm (or segmented.glm) is a
list of fitted GLM; the i-th model is the segmented model with the values of the breakpoints at the i-th iteration.
A list with the arguments as components.
#decrease the maximum number inner iterations and display the
#evolution of the (outer) iterations
seg.control(display = TRUE, maxit.glm=4)