number of unmasked data, as floats between 0. and 1. Noting n the number of unmasked data before trimming, the (n*limits[0])th smallest data and the (n*limits[1])th largest data are masked, and the total number of unmasked data after trimming is n*(1.-sum(limits)) The value of one limit can be set to None to indicate an open interval. inclusive : {(True, True) tuple}, optional Tuple indicating whether the number of data being masked on each side should be truncated (True) or rounded (False). inplace : {False, True}, optional Whether to winsorize in place (True) or to use a copy (False) axis : {None, int}, optional Axis along which to trim. If None, the whole array is trimmed, but its shape is maintained. nan_policy : {'propagate', 'raise', 'omit'}, optional Defines how to handle when input contains nan. The following options are available (default is 'propagate'): * 'propagate': allows nan values and may overwrite or propagate them * 'raise': throws an error * 'omit': performs the calculations ignoring nan values Notes ----- This function is applied to reduce the effect of possibly spurious outliers by limiting the extreme values. Examples -------- >>> import numpy as np >>> from scipy.stats.mstats import winsorize A shuffled array contains integers from 1 to 10. >>> a = np.array([10, 4, 9, 8, 5, 3, 7, 2, 1, 6]) The 10% of the lowest value (i.e., ``1``) and the 20% of the highest values (i.e., ``9`` and ``10``) are replaced. >>> winsorize(a, limits=[0.1, 0.2]) masked_array(data=[8, 4, 8, 8, 5, 3, 7, 2, 2, 6], mask=False, fill_value=999999) c