Gradient-Descent Demonstration in Matlab
GDDEMO runs a little demonstration of
gradient descent in Matlab.
Download and unzip this file, change to the gddemo
directory, launch Matlab, and
type gddemo to get started. Click in the space above the error surface to
drop a ball onto it. Ball descends gradient using local search
(negative hill-climbing), after which final weights are shown by
intersecting lines on axes. Click on the axes below the error surface to
show the error at the corresponding weights. You can write your own
errfun.m if you want a different error function. Have fun, and contact
levys@wlu.edu with any questions or comments.
