pandas.DataFrame.fillna# DataFrame.fillna(value=None, *, method=None, axis=None, inplace=False, limit=None, downcast=<no_default>)[source]# Fill NA/NaN values using the specified method. Parameters: valuescalar, dict, Series, or DataFrameValue to use to fill holes (e.g. 0), alternately a dict/Series/DataFrame of values specifying which value to use for each index (for a Series) or column (for a Da
