Neural Network Toolbox

radbas

Radial basis transfer function

Graph and Symbol

Syntax

• A = radbas(N)
  info = radbas(code)
  

Description

radbas is a transfer function. Transfer functions calculate a layer's output from its net input.

radbas(N) takes one input,

• N -- S x Q matrix of net input (column) vectors

and returns each element of N passed through a radial basis function.

radbas(code) returns useful information for each code string:

• 'deriv' -- Name of derivative function

  'name' -- Full name

  'output' -- Output range

  'active' -- Active input range

Examples

Here we create a plot of the radbas transfer function.

• n = -5:0.1:5;
  a = radbas(n);
  plot(n,a)
  

Network Use

You can create a standard network that uses radbas by calling newpnn or newgrnn.

To change a network so that a layer uses radbas, set net.layers{i}.transferFcn to 'radbas'.

In either case, call sim to simulate the network with radbas. See newpnn or newgrnn for simulation examples.

Algorithm

radbas(N) calculates its output as:

• a = exp(-n2)

See Also

• sim, tribas, dradbas
  

quant

randnc

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