I am a beginner in Matlab. My problem is to update the weights after each iteration.. but I am not able to use for loop for my weights updation

Here is my code:

clc;

clear all;

p = [-1 1; 0 0; 1 -1; 1 0; 0 1];

t = [1; 1; 1; 0; 0];

i = 0;

for i = 1:10

w(i) = [0 -1];

b(i) = 0;

a = hardlim((w(i)*p(1,:)') + b(i))

e = t(1,1) - a

if e == 0

w(i+1) = w(i);

b(i+1) = b(i);

else

w(i+1) = w(i) + e.*p(1,:)

b(i+1) = b(i) + e

end

end

Answer 1

[Nagasai Bharat]

Hi,

The error you might be getting when running this script is due to the w(i) = [0 1] line. This error arises due to the case that w is would be a 2-D Matrix of size (10,2) and not a 1-D vector because we are updating in a loop and its values are row concatinated.

To resolve the issue use

w(i,:) = [0 1];