| Membership Functions | Before PSO | After PSO | ||
| Mean(Cnj) | Standard Deviation(σnj) | Mean(Cnj) | Standard Deviation(σnj) | |
| NL | −0.667 | 0.118 | −1 | 0.07786 |
| NM | −0.3891 | 0.118 | −0.6833 | 0.04955 |
| NDS | −0.1114 | 0.118 | −0.3 | 0.04247 |
| Z | 0 | 0.118 | −0.05 | 0.04247 |
| PS | 0.444 | 0.118 | 0.3117 | 0.0304 |
| PM | 0.7221 | 0.118 | 0.6708 | 0.03575 |
| PL | 1 | 0.118 | 1 | 0.0354 |