thinkstats2.py 文件源码

def __init__(self, sample, label=None):
        """Estimates the density function based on a sample.

        sample: sequence of data
        label: string
        """
        self.label = label if label is not None else '_nolegend_'
        self.kde = stats.gaussian_kde(sample)
        low = min(sample)
        high = max(sample)
        self.linspace = np.linspace(low, high, 101)