concur
Create concurrent bias vectors
Syntax
concur(B,Q)
Description
concur(B,Q)
B |
|
Q | Concurrent size |
and returns an S-by-B matrix of copies of
B (or an Nl-by-1 cell array of
matrices).
Examples
Here concur creates three copies of a bias vector.
b = [1; 3; 2; -1]; concur(b,3)
Network Use
To calculate a layer’s net input, the layer’s weighted inputs must be combined with its
biases. The following expression calculates the net input for a layer with the
netsum net input function, two input weights, and a bias:
n = netsum(z1,z2,b)
The above expression works if Z1, Z2, and
B are all S-by-1 vectors. However, if
the network is being simulated by sim (or adapt or
train) in response to Q concurrent vectors, then
Z1 and Z2 will be
S-by-Q matrices. Before B can be
combined with Z1 and Z2, you must make
Q copies of it.
n = netsum(z1,z2,concur(b,q))
Version History
Introduced before R2006a
