### Navigation

- index
- modules |
- modules |
- SciPy v0.9 Reference Guide (DRAFT) »

# scipy.interpolate.BarycentricInterpolator.add_xi

`BarycentricInterpolator.``add_xi`(xi, yi=None)

  Add more x values to the set to be interpolated

  The barycentric interpolation algorithm allows easy updating by adding more points for the polynomial to pass through.

  Parameters : | xi : array-like of length N1 The x coordinates of the points the polynomial should pass through yi : array-like N1 by R or None The y coordinates of the points the polynomial should pass through; if R>1 the polynomial is vector-valued. If None the y values will be supplied later. The yi should be specified if and only if the interpolator has y values specified.

### Navigation

- index
- modules |
- modules |
- SciPy v0.9 Reference Guide (DRAFT) »