This sample shows the required steps to apply Parametric curves to fit data.

  1. Select data series on left panel [Points].
  2. Select menu item <Fit><Fit Function>.
  3. The 'Approximation line' Wizard appears.
  4. On step 2 select item 'Parametric'.
  5. On step 3 select the number of harmonics 'M = 2'.
  6. Select item 'Closed curve' checked.
  7. New graph appears. See how curve fit conforms your data.
  8. Vary the number of harmonics.
  9. On step 5 select line color and click Add Line.