fynance.features.metrics.mad¶
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fynance.features.metrics.
mad
(X, axis=0, dtype=None)¶ Compute the Mean Absolute Deviation of each X’ series.
Compute the mean of the absolute value of the distance to the mean [6].
Parameters: - X : np.ndarray[np.dtype, ndim=1 or 2]
Time-series of prices, performances or index.
- axis : {0, 1}, optional
Axis along wich the computation is done. Default is 0.
- dtype : np.dtype, optional
The type of the output array. If dtype is not given, infer the data type from X input.
Returns: - dtype or np.ndarray[dtype, ndim=1]
Values of mean absolute deviation of each series.
See also
References
[6] https://en.wikipedia.org/wiki/Average_absolute_deviation Examples
>>> X = np.array([70., 100., 90., 110., 150., 80.]) >>> mad(X) 20.0