GradFuncs.zip - Zip archive of all files
GradFuncs.R - R source code for the fitting functions. Requires the MASS and quadprog libraries and version 1.1 or higher of R
TestGradFuncs.R - Examples of using the main fitting functions, extensively commented. Requires the mgcv library
GradFuncs.doc - Documentation in MS Word 2000 format
GradFuncs.pdf - Documentation in PDF format
Nichadults.txt - Data file used by the examples: every-other-day count of adult numbers in series "I" from Nicholson (1957).