Contents

gridtop

Grid layer topology function

Syntax

gridtop(dim1,dim2,...,dimN)

Description

pos = gridtop calculates neuron positions for layers whose neurons are arranged in an N-dimensional grid.

gridtop(dim1,dim2,...,dimN) takes N arguments,

dimi

Length of layer in dimension i

and returns an N-by-S matrix of N coordinate vectors where S is the product of dim1*dim2*...*dimN.

Examples

This code uses gridtop to directly create a two-dimensional layer with 40 neurons arranged in an 8-by-5 grid; then uses the function as an input to selforgmap to create weight positions of neurons for a self-organizing map and plots the neuron topology.

pos = gridtop(8,5);
net = selforgmap([8 5],'topologyFcn','gridtop');
plotsomtop(net)

See Also

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