.. _example_plot_sine_wave.py: =============================== Plotting simple sine function =============================== A simple example plotting a fit of the sine function. .. image:: images/plot_sine_wave_001.png :align: center **Script output**: .. rst-class:: sphx-glr-script-out :: Forward Pass ---------------------------------------------------------------------- iter parent var knot mse terms gcv rsq grsq ---------------------------------------------------------------------- 0 - - - 4449.337778 1 4450.228 0.000 -0.000 1 0 6 8011 2989.250294 3 2994.638 0.328 0.327 2 1 6 3811 158.477297 5 159.017 0.964 0.964 3 0 6 6511 129.369292 7 130.019 0.971 0.971 4 3 6 1211 109.489114 9 110.215 0.975 0.975 5 5 6 4711 103.378143 11 104.231 0.977 0.977 6 9 6 3811 101.655699 13 102.659 0.977 0.977 ---------------------------------------------------------------------- Stopping Condition 2: Improvement below threshold Pruning Pass ---------------------------------------------------- iter bf terms mse gcv rsq grsq ---------------------------------------------------- 0 - 13 101.66 102.659 0.977 0.977 1 2 12 101.66 102.577 0.977 0.977 2 12 11 101.84 102.676 0.977 0.977 3 3 10 103.10 103.865 0.977 0.977 4 7 9 104.23 104.921 0.977 0.976 5 10 8 104.93 105.543 0.976 0.976 6 11 7 106.56 107.091 0.976 0.976 7 5 6 115.62 116.108 0.974 0.974 8 8 5 138.76 139.236 0.969 0.969 9 4 4 251.66 252.312 0.943 0.943 10 6 3 3026.23 3031.688 0.320 0.319 11 9 2 3872.06 3875.935 0.130 0.129 12 1 1 4449.34 4450.228 -0.000 -0.000 ---------------------------------------------------- Selected iteration: 1 Earth Model ---------------------------------------------------------------- Basis Function Pruned Coefficient ---------------------------------------------------------------- (Intercept) No 576.111 h(x6+24.5573) No -15.37 h(-24.5573-x6) Yes None h(x6-9.30493)*h(x6+24.5573) No 1.88872 h(9.30493-x6)*h(x6+24.5573) No 0.403057 h(x6+12.5446) No 9.10831 h(-12.5446-x6) No -9.33602 h(x6-30.3812)*h(x6-9.30493)*h(x6+24.5573) No 0.0849127 h(30.3812-x6)*h(x6-9.30493)*h(x6+24.5573) No -0.0862001 h(x6-1.85328)*h(x6+12.5446) No 0.403693 h(1.85328-x6)*h(x6+12.5446) No -0.183637 h(x6-9.30493)*h(x6-1.85328)*h(x6+12.5446) No -0.0935145 h(9.30493-x6)*h(x6-1.85328)*h(x6+12.5446) No -0.0123002 ---------------------------------------------------------------- MSE: 101.6557, GCV: 102.5768, RSQ: 0.9772, GRSQ: 0.9770 **Python source code:** :download:`plot_sine_wave.py ` .. literalinclude:: plot_sine_wave.py :lines: 8- **Total running time of the example:** 4.88 seconds ( 0 minutes 4.88 seconds)