Re: 3D plot of error function of neural network
- To: mathgroup at smc.vnet.net
- Subject: [mg42417] Re: 3D plot of error function of neural network
- From: "AngleWyrm" <no_spam_anglewyrm at hotmail.com>
- Date: Sat, 5 Jul 2003 03:11:02 -0400 (EDT)
- References: <bdefm2$dl6$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
"Bastian" <baspo at web.de> wrote in message news:bdefm2$dl6$1 at smc.vnet.net... > Hello, > I want to plot an example for an neural network error surface > depending on two weights. Ok, I surmize that x is one weight, and y is another weight, and z is a single output. Given this scenario, what is the formula you are using to calculate the output(z) from the two input weights (x,y) ? outputWeight:= Sin[x y] ; <-- just some example formula using x and y Plot3D[ outputWeight, {x, -5, 5}, {y, -5, 5}] <-- the change the x and y ranges to suit you. or if you are interested in a bird's eye view of the surface, you can use a contour plot: ContourPlot[ outputWeight, {x, -5, 5}, {y, -5, 5}]; It is my guess that your x and y ranges are probably floats in the range of 0.0 to 1.0.