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Symmetric saturating linear transfer function

Graph and Symbol


A = satlins(N,FP)


satlins is a neural transfer function. Transfer functions calculate a layer’s output from its net input.

A = satlins(N,FP) takes N and an optional argument,


S-by-Q matrix of net input (column) vectors


Struct of function parameters (optional, ignored)

and returns A, the S-by-Q matrix of N’s elements clipped to [-1, 1].

info = satlins('code') returns useful information for each supported code string:

satlins('name') returns the name of this function.

satlins('output',FP) returns the [min max] output range.

satlins('active',FP) returns the [min max] active input range.

satlins('fullderiv') returns 1 or 0, depending on whether dA_dN is S-by-S-by-Q or S-by-Q.

satlins('fpnames') returns the names of the function parameters.

satlins('fpdefaults') returns the default function parameters.


Here is the code to create a plot of the satlins transfer function.

n = -5:0.1:5;
a = satlins(n);


satlins(n) = -1, if n <= -1
n, if -1 <= n <= 1
1, if 1 <= n

See Also

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Introduced before R2006a

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