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42 lines
814 B
Plaintext
42 lines
814 B
Plaintext
/*
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Example: Different membership functions
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Pablo Cingolani
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pcingola@users.sourceforge.net
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*/
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FUNCTION_BLOCK testVariables
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VAR_INPUT // Define input variables
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inVar : REAL;
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END_VAR
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VAR_OUTPUT // Define output variables
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outVar : REAL;
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END_VAR
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// Pairwise linear
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FUZZIFY inVar
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TERM poor := TRIAN 0 1 2;
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TERM good := TRIAN 2 5 7;
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TERM excellent := TRIAN 7 8 10;
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END_FUZZIFY
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DEFUZZIFY outVar
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DEFAULT = 0
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TERM low := FUNCTION (inVar * 1.0);
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TERM mid := FUNCTION (inVar * 2.0) + 1;
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TERM high := FUNCTION (inVar * 3.0) + 5 * SIN(inVar);
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METHOD : COGS;
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END_DEFUZZIFY
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RULEBLOCK
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ACT : MIN;
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RULE 1 : IF inVar IS poor THEN outVar IS low;
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RULE 2 : IF inVar IS good THEN outVar IS mid;
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RULE 3 : IF inVar IS excellent THEN outVar IS high;
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END_RULEBLOCK
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END_FUNCTION_BLOCK
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