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[FUZZY-LOGIC] crash?
From: |
Juan Pablo Carbajal |
Subject: |
[FUZZY-LOGIC] crash? |
Date: |
Thu, 6 Mar 2014 18:11:26 +0100 |
Hi,
The following data makes fcm of the fuzzy logic package crash with
division by zero
t = linspace (0,1,100).';
y = sin (2*pi*20*t);
x = double (abs (y) > 0.7)
s = fcm (x,3);
Iteration count = 1, Objective fcn = 4.502587
Iteration count = 2, Objective fcn = 0.018725
Iteration count = 3, Objective fcn = 0.000000
error: division by 0 in function fcm_update_cluster_centers
I guess it is due to an unhandled case when the cost function is exactly zero.
Shall I file a bug report?
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