Research Article

Automatic Curve Fitting Based on Radial Basis Functions and a Hierarchical Genetic Algorithm

Figure 2

Data and estimates correspond to the best function estimated from the experimental setup with 50 samples and SNR = 3. The columns correspond from left to right to the GRNN, HGA, and RBNN methods, respectively (solid line estimated function; dashed line real function). The rows correspond from top to bottom to test functions 1 to 5.