Adrian For normal random sampling, you could use the verb "normalrand" in system\packages\stats\statdist.ijs - that's if you're using J602.
Don't forget that uniform or triangular distributions often serve the purpose for these sorts of applications. NB - for old hands: It's not clear to me where the equivalent can be found in the new J7 setup. I can't find "statdist.ijs" anywhere. Are the old stats scripts deplored? Mike On 28/03/2011 16:01, Adrian May wrote: > On 28 March 2011 22:25, Raul Miller<[email protected]> wrote: > >> Note that, personally, I do not know what you are trying to accomplish. >> However if you are trying to build a list where each element is double >> >> > No, it'll be those random numbers again. I'm trying to simulate the road > that my neural network is gonna try to drive along. It should wind back and > forth more or less like real roads. The list I'm making is a set of values > for the curvature at each moment in time (the car's speed is constant for > now.) So each value is a small random change to the previous one, with a bit > of tuning if I can be bothered. I'm thinking of choosing the change in > curvature from a normal distribution biased towards going straight again. I > can't have the curvature go off the scale. Any off-the-shelf normal > distribution functions? > > That'll be one of the inputs, there'll be more inputs, outputs and weights > but otherwise the structure is pretty much like the last program. If it gets > near the edge of the road or turns the wheel too hard the car becomes > increasingly unstable, so by the same principle as the last network it > should learn the most predictable strategy. > > At some point I'll want to calculate the road curvature some way ahead of > everything else so the NN can see the road ahead. > > I just realised that I can't acquire a huge list of snapshots because this > thing might take a hell of a long time to learn. Maybe the printing hack was > right: at least it saved memory. I have no use for the old values. > > I guess I should stick to the existing architecture but add stuff to the > environment function that has nothing to do with the outputs but carries > some state of its own along and feeds a subset of that state to the inputs. > That makes this whole thread redundant. Sorry for the distraction. > > Adrian. > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
