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seimlogx not working in an iteration

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James Stine
James Stine on 24 Apr 2018
Commented: James Stine on 24 Apr 2018
I am working on a MATLAB script that iterates over several values and the code is attached. For some reason it doesn't see semiology. If I plot each value of r individually, but within the script it just gives me a linear scale. A bug?
%
% Amdahl's Law
% ECEN 4243
%
clear
clc ; clf
r = [0.90 0.96 0.98 0.99];
n=1:10000;
hold on
for i = 1:length(r)
S(i,:) = 1./((r(i)./n)+(1-r(i)));
semilogx(S(i,:))
end

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Accepted Answer

Kelly Kearney
Kelly Kearney on 24 Apr 2018
The hold on command is the culprit... you're issuing it before you plot, so the linear axis is being held throughout. If you move the hold command after the first call to semilogx, it should work as intended.

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James Stine
James Stine on 24 Apr 2018
Great answer! Thank you!!!!!!!!!

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