Neural Network Toolbox

dposlin

Derivative of positive linear transfer function

Syntax

dA_dN = dposlin(N,A)

Description

dposlin is the derivative function for poslin.

dposlin(N,A) takes two arguments, and returns the S x Q derivative dA/dN.

Examples

Here we define the net input N for a layer of 3 poslin neurons.

• N = [0.1; 0.8; -0.7];
  

We calculate the layer's output A with poslin and then the derivative of A with respect to N.

• A = poslin(N)
  dA_dN = dposlin(N,A)
  

Algorithm

The derivative of poslin is calculated as follows:

• d = 1, if 0 <= n; 0, Otherwise.

See Also

poslin

dotprod

dpurelin