Generic fuzzy operations help

1 view (last 30 days)
soloby on 2 Jul 2015
Edited: soloby on 2 Jul 2015
hi all
if i had something like
x = -10:0.1:10;
f1 = trapmf(x, [-2 0 0 3]);
f2 = trapmf(x, [1 3 3 4]);
this gives me a 1x201 matrix for x, f1, and f2.
I'm trying to make a generic coding (not the built-in fuzarith function) that can solve fuzz (add subtract divide and multiply)
my main issue is that for fuzzy operation, I have to work with the function values of f1 and f2, not x, which is different for every function i put in.
for example, to fuzzy add, I have to find the x values of where f1 and f2 are at some arbitrary point, let's say 0.5, and get the x-values of each f1(0.5) and f2(0.5).
but then this doesn't work because f1 and f2 do not necessarily have a value of 0.5 at any x. then I tried to work with indexes but I ran into a problem of f1 and f2 having different number of non-zero values to work with..
what would be a possible approach?
any hints/comments will be highly appreciated. thanks.

Answers (0)


Find more on Fuzzy Logic in Simulink in Help Center and File Exchange


Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!