Classe « Index »

Méthode pandas.Index.asof_locs

Signature de la méthode asof_locs

def asof_locs(self, where: 'Index', mask) -> numpy.ndarray 

Description

asof_locs.__doc__

        Return the locations (indices) of labels in the index.

        As in the `asof` function, if the label (a particular entry in
        `where`) is not in the index, the latest index label up to the
        passed label is chosen and its index returned.

        If all of the labels in the index are later than a label in `where`,
        -1 is returned.

        `mask` is used to ignore NA values in the index during calculation.

        Parameters
        ----------
        where : Index
            An Index consisting of an array of timestamps.
        mask : array-like
            Array of booleans denoting where values in the original
            data are not NA.

        Returns
        -------
        numpy.ndarray
            An array of locations (indices) of the labels from the Index
            which correspond to the return values of the `asof` function
            for every element in `where`.