Rule Block Requires Conjunction Operator

[Unknown]

Hi there,

I’ve been trying to use Fuzzylite via a matlab .fis file and I’m getting an error that 7 of my rules require a conjunctor operator, but I’m not sure what that actually means.

I’ve had a look at the engine source code but there’s no documentation explaining if there are any standard conjunction operators.

How I initialize my engine is below;

	//Read fis file into a string 
	std::ifstream in("bin/fis/Car.fis");
	std::string file((std::istreambuf_iterator<char>(in)), std::istreambuf_iterator<char>());

	//Import file into fuzzy engine
	mEngine = std::unique_ptr<fl::Engine>(fl::FisImporter().fromString(file));

	mEngine->configure("", "", "Minimum", "Maximum", "Centroid");

I’m sure I’m probably missing something but I’m not sure what, any help would be much appreciated.

Cheers

[Juan Rada-Vilela (admin)]

Hi Dillanm,

if you are using fuzzylite 5, you can create the Engine straight using Engine* e = fl::FisImporter().fromFile("bin/fis/Car.fis").

If you are using fuzzylite 5 and your rules contain and in the antecedent (e.g., if A is a and B is b), then you need a Conjunction operator. In the documentation available at http://www.fuzzylite.com/downloads, you can find that typical conjunction operators are Minimum and AlgebraicProduct. As such, you would need to e->configure("Minimum","","Minimum","Maximum","Centroid"), furthermore, you can always check the engine using

std::string check; 
 if (not engine->isReady(&check)){
    FL_LOG(check);
 }

These errors are very easily found using QtFuzzyLite 5.

Cheers.

[Unknown]

Hi Juan,

I was hoping there was a short way of doing the load from file, thanks for that.

I was using the engine isready function to get that error message about the conjunctions.

Cheers,
Dillan

[Author]

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