### Navigation

- index
- modules |
- modules |
- next |
- previous |
- SciPy v0.12 Reference Guide (DRAFT) »
- Interpolation (`scipy.interpolate`) »

# scipy.interpolate.pchip_interpolate

`scipy.interpolate.``pchip_interpolate`(xi, yi, x, der=0, axis=0)

  Convenience function for pchip interpolation.

  See `PchipInterpolator` for details.

  Parameters : | xi : array_like A sorted list of x-coordinates, of length N. yi : list of lists yi[i] is the list of derivatives known at xi[i]. Of length N. x : scalar or array_like Of length M. der : integer or list How many derivatives to extract; None for all potentially nonzero derivatives (that is a number equal to the number of points), or a list of derivatives to extract. This number includes the function value as 0th derivative. axis : int, optional Axis in the yi array corresponding to the x-coordinate values.
  Returns : | y : scalar or array_like The result, of length R or length M or M by R,

  See also

  `PchipInterpolator`

### Navigation

- index
- modules |
- modules |
- next |
- previous |
- SciPy v0.12 Reference Guide (DRAFT) »
- Interpolation (`scipy.interpolate`) »