def fdr(y, z):
    """False discovery rate `fp / (tp + fp)`
    """
    tp, tn, fp, fn = contingency_table(y, z)
    return fp / (tp + fp)
def fdr ( y , z ) : tp , tn , fp , fn = contingency_table ( y , z ) return fp / ( tp + fp )
False discovery rate `fp / (tp + fp)`