Convert a PLQ subdifferential model to a standard PLQ model.
plq = plq_gph(gph)
matrix. The subdifferential of a PLQ function.
Converts the graph of the subdifferential of a PLQ function into the corresponding PLQ data structure. Uses the value of the function stored at each x value in gph and integrates across each segment.
This function runs in linear time with respect to the number of points in the input graph.
Bryan Gardiner
, University of British Columbia, BC, Canada