# pandas.core.window.Expanding.quantile¶

Calculate the expanding quantile.

- param quantile
- float
Quantile to compute. 0 <= quantile <= 1.

- param interpolation
- {‘linear’, ‘lower’, ‘higher’, ‘midpoint’, ‘nearest’}
New in version 0.23.0.

This optional parameter specifies the interpolation method to use, when the desired quantile lies between two data points i and j:

- linear: i + (j - i) * fraction, where fraction is the
fractional part of the index surrounded by i and j.

lower: i.

higher: j.

nearest: i or j whichever is nearest.

- midpoint: (i + j) / 2.
**kwargs: For compatibility with other expanding methods. Has no effect on the result.

- return
Series or DataFrame Returned object type is determined by the caller of the expanding calculation.

Warning

This feature is currently unsupported by Intel Scalable Dataframe Compiler