[R] Please help regarding "NaN" in sets package

Hi List! I had enquired about the above few days back and did not get an answer. So I am asking again. Thanks. I have built a program for fuzzy inference using the "sets" package. Though there are no errors after defuzzifying using gset_defuzzify() command, the output after using the "centroid" op

[R] Regarding NaN output in "sets" package

Hi! I have built a program for fuzzy inference using the "sets" package. Though there are no errors after defuzzifying using gset_defuzzify() command, the output after using the "centroid" option is a "NaN". What may be going wrong here? P.S: There are just 10 dependent factors and just five rules