generic.py 文件源码

def trim_zeros_frames(x, eps=1e-7):
    """Remove trailling zeros frames.

    Similar to :func:`numpy.trim_zeros`, trimming trailing zeros features.

    Args:
        x (numpy.ndarray): Feature matrix, shape (``T x D``)
        eps (float): Values smaller than ``eps`` considered as zeros.

    Returns:
        numpy.ndarray: Trimmed 2d feature matrix, shape (``T' x D``)

    Examples:
        >>> import numpy as np
        >>> from nnmnkwii.preprocessing import trim_zeros_frames
        >>> x = np.random.rand(100,10)
        >>> y = trim_zeros_frames(x)
    """

    T, D = x.shape
    s = np.sum(np.abs(x), axis=1)
    s[s < eps] = 0.
    return x[: len(np.trim_zeros(s))]