Samples.ppf (function)

def ppf(self, q, unit=None, as_quantity=False, wrap_at=None)

Expose the percent point function (ppf; iverse of cdf - percentiles) at values of q.

For Samples, this is done manually by sorting all Samples.samples and mapping q onto the range of the sum of Samples.weights to select the appropriate entry from Samples.samples.

See also:

• Samples.pdf
• Samples.cdf
• Samples.sample

Arguments

• q (float or array): percentiles at which to expose the ppf
• unit (astropy.unit, optional, default=None): unit of the exposed values. If None or not provided, will assume they're provided in Samples.unit.
• as_quantity (bool, optional, default=False): whether to return an astropy quantity object instead of just the value. Astropy must be installed.
• wrap_at (float, None, or False, optional, default=None): value to use for wrapping. See Samples.wrap. If not provided or None, will use the value from Samples.wrap_at. Note: wrapping is computed before changing units, so wrap_at must be provided according to Samples.unit not unit.

Returns

• (float or array) ppf values of the same type/shape as x