Can anyone simplify this code please?
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jlt199
el 13 de Sept. de 2016
Comentada: jlt199
el 15 de Sept. de 2016
Morning all,
I have a problem. I'm trying to take a subset of a matrix, but not a uniform distribution. The difference between points is given in the vector phi, which I've made super long to make sure I don't reach the end of it, As you can see this vector is a 6 number repeating pattern. I've made a vector, zeta, containing the rows I would like to extract from the matrix. But, it is super clunky! Is anyone able to simplify this code for me please? I'm sure it should be possible without the loop.
phi = repmat([8.70;8.70;8.70;8.70;8.70;16.59],10,1);
% Random number generator to decide which sensor to use first
sensor = randi(6,1);
col = 1;
zeta = 1;
while col + round(phi(sensor),0) < 153
col = col + round(phi(sensor),0);
zeta = [zeta; col];
sensor = sensor + 1;
end
Many thanks
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TallBrian
el 14 de Sept. de 2016
I am not sure exactly what you mean by simplify but here is some code which eliminates the looping.
LENGTH = 153;
phi = round([8.70; 8.70; 8.70; 8.70; 8.70; 16.59]);
max_reps = round(LENGTH / sum(phi)) + 1;
phi_complete = repmat(phi, max_reps, 1);
phi_offset = [1; phi_complete(randi(6,1):end)];
zeta = cumsum(phi_offset);
zeta = zeta(zeta < LENGTH);
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