Python summary.Summary类代码示例

    def summary(self, yname=None, xname=None, title=0, alpha=.05,
                return_fmt='text'):
        """
        This is for testing the new summary setup
        """
        from statsmodels.iolib.summary import (summary_top,
                                            summary_params, summary_return)

##        left = [(i, None) for i in (
##                        'Dependent Variable:',
##                        'Model type:',
##                        'Method:',
##			'Date:',
##                        'Time:',
##                        'Number of Obs:',
##                        'df resid',
##		        'df model',
##                         )]
        top_left = [('Dep. Variable:', None),
                    ('Model:', None),
                    ('Method:', ['IRLS']),
                    ('Norm:', [self.fit_options['norm']]),
                    ('Scale Est.:', [self.fit_options['scale_est']]),
                    ('Cov Type:', [self.fit_options['cov']]),
                    ('Date:', None),
                    ('Time:', None),
                    ('No. Iterations:', ["%d" % self.fit_history['iteration']])
                    ]
        top_right = [('No. Observations:', None),
                     ('Df Residuals:', None),
                     ('Df Model:', None)
                     ]

        if not title is None:
            title = "Robust linear Model Regression Results"

        #boiler plate
        from statsmodels.iolib.summary import Summary
        smry = Summary()
        smry.add_table_2cols(self, gleft=top_left, gright=top_right, #[],
                          yname=yname, xname=xname, title=title)
        smry.add_table_params(self, yname=yname, xname=xname, alpha=.05,
                             use_t=False)

        #diagnostic table is not used yet
#        smry.add_table_2cols(self, gleft=diagn_left, gright=diagn_right,
#                          yname=yname, xname=xname,
#                          title="")

#add warnings/notes, added to text format only
        etext =[]
        wstr = \
'''If the model instance has been used for another fit with different fit
parameters, then the fit options might not be the correct ones anymore .'''
        etext.append(wstr)

        if etext:
            smry.add_extra_txt(etext)

        return smry

    def summary(self, yname=None, xname=None, title=0, alpha=0.05, return_fmt="text"):
        """
        This is for testing the new summary setup
        """
        from statsmodels.iolib.summary import summary_top, summary_params, summary_return

        ##        left = [(i, None) for i in (
        ##                        'Dependent Variable:',
        ##                        'Model type:',
        ##                        'Method:',
        ##			'Date:',
        ##                        'Time:',
        ##                        'Number of Obs:',
        ##                        'df resid',
        ##		        'df model',
        ##                         )]
        top_left = [
            ("Dep. Variable:", None),
            ("Model:", None),
            ("Method:", ["IRLS"]),
            ("Norm:", [self.fit_options["norm"]]),
            ("Scale Est.:", [self.fit_options["scale_est"]]),
            ("Cov Type:", [self.fit_options["cov"]]),
            ("Date:", None),
            ("Time:", None),
            ("No. Iterations:", ["%d" % self.fit_history["iteration"]]),
        ]
        top_right = [("No. Observations:", None), ("Df Residuals:", None), ("Df Model:", None)]

        if not title is None:
            title = "Robust linear Model Regression Results"

        # boiler plate
        from statsmodels.iolib.summary import Summary

        smry = Summary()
        smry.add_table_2cols(self, gleft=top_left, gright=top_right, yname=yname, xname=xname, title=title)  # [],
        smry.add_table_params(self, yname=yname, xname=xname, alpha=alpha, use_t=self.use_t)

        # diagnostic table is not used yet
        #        smry.add_table_2cols(self, gleft=diagn_left, gright=diagn_right,
        #                          yname=yname, xname=xname,
        #                          title="")

        # add warnings/notes, added to text format only
        etext = []
        wstr = """If the model instance has been used for another fit with different fit
parameters, then the fit options might not be the correct ones anymore ."""
        etext.append(wstr)

        if etext:
            smry.add_extra_txt(etext)

        return smry

 def summary(self, yname=None, xname=None, title=None, alpha=.05,
             yname_list=None):
     top_left = [('Dep. Variable:', None),
                  ('Model:', [self.model.__class__.__name__]),
                  ('Method:', ['MLE']),
                  ('Date:', None),
                  ('Time:', None),
                  ('Converged:', ["%s" % self.mle_retvals['converged']])]
     top_right = [('No. Observations:', None),
                  ('Log-Likelihood:', None),
                  ]
     if title is None:
         title = self.model.__class__.__name__ + ' ' + "Regression Results"
     #boiler plate
     from statsmodels.iolib.summary import Summary
     smry = Summary()
     # for top of table
     smry.add_table_2cols(self, gleft=top_left, gright=top_right, #[],
                       yname=yname, xname=xname, title=title)
     # for parameters, etc
     smry.add_table_params(self, yname=yname_list, xname=xname, alpha=alpha,
                          use_t=True)
     return smry

	def summary(self, yname=None, xname=None, title=0, alpha=0.05, return_fmt='text'):
		from statsmodels.iolib.summary import (summary_top, summary_params, summary_return) 
		top_left = [('Dep. Variable:', None), 
			('Model:', None), 
			('Method:', ['Interior Point']), 
			('Date:', None), 
			('Time:', None)] 

		top_right = [('No. Observations:', None), 
			('Df Residuals:', None), 
			('Df Model:', None),
			('Outer Iterations:', ["%d" % self.fit_history['outer_iterations']]), 
			('Avg. Inner Iterations:', ["%d" % self.fit_history['avg_inner_iterations']]) ]

		if not title is None:
			title = "Nonlinear Quantile Regression Results"
	
		from statsmodels.iolib.summary import Summary
		smry = Summary()
		smry.add_table_2cols(self, gleft=top_left, gright=top_right, yname=yname, xname=xname, title=title)
		smry.add_table_params(self, yname=yname, xname=xname, alpha=alpha, use_t=False)
		
		return smry

    def summary(self):
        """Summary of test, containing statistic, p-value and critical values
        """
        table_data = [('Test Statistic', '{0:0.3f}'.format(self.stat)),
                      ('P-value', '{0:0.3f}'.format(self.pvalue)),
                      ('Lags', '{0:d}'.format(self.lags))]
        title = self._title

        if not title:
            title = self._test_name + " Results"
        table = SimpleTable(table_data, stubs=None, title=title, colwidths=18,
                            datatypes=[0, 1], data_aligns=("l", "r"))

        smry = Summary()
        smry.tables.append(table)

        cv_string = 'Critical Values: '
        cv = self._critical_values.keys()
        g = lambda x: float(x.split('%')[0])
        cv_numeric = array(lmap(g, cv))
        cv_numeric = sort(cv_numeric)
        for val in cv_numeric:
            p = str(int(val)) + '%'
            cv_string += '{0:0.2f}'.format(self._critical_values[p])
            cv_string += ' (' + p + ')'
            if val != cv_numeric[-1]:
                cv_string += ', '

        extra_text = ['Trend: ' + TREND_DESCRIPTION[self._trend],
                      cv_string,
                      'Null Hypothesis: ' + self.null_hypothesis,
                      'Alternative Hypothesis: ' + self.alternative_hypothesis]

        smry.add_extra_txt(extra_text)
        if self._summary_text:
            smry.add_extra_txt(self._summary_text)
        return smry

    def summary(self, yname=None, xname=None, title=0, alpha=.05,
                return_fmt='text'):
        """
        This is for testing the new summary setup
        """
        top_left = [('Dep. Variable:', None),
                    ('Model:', None),
                    ('Method:', ['IRLS']),
                    ('Norm:', [self.fit_options['norm']]),
                    ('Scale Est.:', [self.fit_options['scale_est']]),
                    ('Cov Type:', [self.fit_options['cov']]),
                    ('Date:', None),
                    ('Time:', None),
                    ('No. Iterations:', ["%d" % self.fit_history['iteration']])
                    ]
        top_right = [('No. Observations:', None),
                     ('Df Residuals:', None),
                     ('Df Model:', None)
                     ]

        if title is not None:
            title = "Robust linear Model Regression Results"

        # boiler plate
        from statsmodels.iolib.summary import Summary
        smry = Summary()
        smry.add_table_2cols(self, gleft=top_left, gright=top_right,
                             yname=yname, xname=xname, title=title)
        smry.add_table_params(self, yname=yname, xname=xname, alpha=alpha,
                              use_t=self.use_t)

        # add warnings/notes, added to text format only
        etext = []
        wstr = ("If the model instance has been used for another fit "
                "with different fit\n"
               "parameters, then the fit options might not be the correct "
               "ones anymore .")
        etext.append(wstr)

        if etext:
            smry.add_extra_txt(etext)

        return smry

    def summary(self, alpha=.05):
        """
        Returns a summary table for marginal effects

        Parameters
        ----------
        alpha : float
            Number between 0 and 1. The confidence intervals have the
            probability 1-alpha.

        Returns
        -------
        Summary : SummaryTable
            A SummaryTable instance
        """
        _check_at_is_all(self.margeff_options)
        results = self.results
        model = results.model
        title = model.__class__.__name__ + " Marginal Effects"
        method = self.margeff_options['method']
        top_left = [('Dep. Variable:', [model.endog_names]),
                ('Method:', [method]),
                ('At:', [self.margeff_options['at']]),]

        from statsmodels.iolib.summary import (Summary, summary_params,
                                                table_extend)
        exog_names = model.exog_names[:] # copy
        smry = Summary()

        # sigh, we really need to hold on to this in _data...
        _, const_idx = _get_const_index(model.exog)
        if const_idx is not None:
            exog_names.pop(const_idx)

        J = int(getattr(model, "J", 1))
        if J > 1:
            yname, yname_list = results._get_endog_name(model.endog_names,
                                                None, all=True)
        else:
            yname = model.endog_names
            yname_list = [yname]

        smry.add_table_2cols(self, gleft=top_left, gright=[],
                yname=yname, xname=exog_names, title=title)

        #NOTE: add_table_params is not general enough yet for margeff
        # could use a refactor with getattr instead of hard-coded params
        # tvalues etc.
        table = []
        conf_int = self.conf_int(alpha)
        margeff = self.margeff
        margeff_se = self.margeff_se
        tvalues = self.tvalues
        pvalues = self.pvalues
        if J > 1:
            for eq in range(J):
                restup = (results, margeff[:,eq], margeff_se[:,eq],
                          tvalues[:,eq], pvalues[:,eq], conf_int[:,:,eq])
                tble = summary_params(restup, yname=yname_list[eq],
                              xname=exog_names, alpha=alpha, use_t=False,
                              skip_header=True)
                tble.title = yname_list[eq]
                # overwrite coef with method name
                header = ['', _transform_names[method], 'std err', 'z',
                        'P>|z|', '[%3.1f%% Conf. Int.]' % (100-alpha*100)]
                tble.insert_header_row(0, header)
                #from IPython.core.debugger import Pdb; Pdb().set_trace()
                table.append(tble)

            table = table_extend(table, keep_headers=True)
        else:
            restup = (results, margeff, margeff_se, tvalues, pvalues, conf_int)
            table = summary_params(restup, yname=yname, xname=exog_names,
                    alpha=alpha, use_t=False, skip_header=True)
            header = ['', _transform_names[method], 'std err', 'z',
                        'P>|z|', '[%3.1f%% Conf. Int.]' % (100-alpha*100)]
            table.insert_header_row(0, header)

        smry.tables.append(table)
        return smry

    def summary(self, yname=None, xname=None, title=None, alpha=.05):
        """Summarize the Regression Results

        Parameters
        -----------
        yname : string, optional
            Default is `y`
        xname : list of strings, optional
            Default is `var_##` for ## in p the number of regressors
        title : string, optional
            Title for the top table. If not None, then this replaces the
            default title
        alpha : float
            significance level for the confidence intervals

        Returns
        -------
        smry : Summary instance
            this holds the summary tables and text, which can be printed or
            converted to various output formats.

        See Also
        --------
        statsmodels.iolib.summary.Summary : class to hold summary
            results

        """

        top_left = [('Dep. Variable:', None),
                  ('Model:', None),
                  ('Model Family:', [self.family.__class__.__name__]),
                  ('Link Function:', [self.family.link.__class__.__name__]),
                  ('Method:', ['IRLS']),
                  ('Date:', None),
                  ('Time:', None),
                  ('No. Iterations:', ["%d" % self.fit_history['iteration']]),
                  ]

        top_right = [('No. Observations:', None),
                     ('Df Residuals:', None),
                     ('Df Model:', None),
                     ('Scale:', [self.scale]),
                     ('Log-Likelihood:', None),
                     ('Deviance:', ["%#8.5g" % self.deviance]),
                     ('Pearson chi2:', ["%#6.3g" % self.pearson_chi2])
                     ]

        if title is None:
            title = "Generalized Linear Model Regression Results"

        #create summary tables
        from statsmodels.iolib.summary import Summary
        smry = Summary()
        smry.add_table_2cols(self, gleft=top_left, gright=top_right, #[],
                          yname=yname, xname=xname, title=title)
        smry.add_table_params(self, yname=yname, xname=xname, alpha=alpha,
                             use_t=True)

        #diagnostic table is not used yet:
        #smry.add_table_2cols(self, gleft=diagn_left, gright=diagn_right,
        #                  yname=yname, xname=xname,
        #                  title="")

        return smry

    def summary(self, title = None, alpha = .05):
        """Summarize the Clogit Results

        Parameters
        -----------
        title : string, optional
            Title for the top table. If not None, then this replaces the
            default title
        alpha : float
            significance level for the confidence intervals

        Returns
        -------
        smry : Summary instance
            this holds the summary tables and text, which can be printed or
            converted to various output formats.

        See Also
        --------
        statsmodels.iolib.summary.Summary : class to hold summary
            results

        """

        top_left = [('Dep. Variable:', None),
                    ('Model:', [self.model.__class__.__name__]),
                    ('Method:', [self.mle_settings['optimizer']]),
                    ('Date:', None),
                    ('Time:', None),
                    ('Converged:', ["%s" % self.mle_retvals['converged']]),
                    ('Iterations:', ["%s" % self.mle_retvals['iterations']]),
                    ('Elapsed time (seg.):',
                                    ["%10.4f" % self.model.elapsed_time]),
                    ('Num. alternatives:', [self.model.J])
                      ]

        top_right = [
                     ('No. Cases:', [self.nobs]),
                     ('No. Observations:', [self.nobs_bychoice]),
                     ('Df Residuals:', [self.model.df_resid]),
                     ('Df Model:', [self.model.df_model]),
                     ('Log-Likelihood:', None),
                     ('LL-Null:', ["%#8.5g" % self.llnull]),
                     ('Pseudo R-squ.:', ["%#6.4g" % self.prsquared]),
                     ('LLR p-value:', ["%#6.4g" % self.llr_pvalue]),
                     ('Likelihood ratio test:', ["%#8.5g" %self.llrt]),
                     ('AIC:', ["%#8.5g" %self.aic])

                                     ]
        if title is None:
            title = self.model.__class__.__name__ + ' ' + \
            "results"

        #boiler plate
        from statsmodels.iolib.summary import Summary, SimpleTable

        smry = Summary()
        # for top of table
        smry.add_table_2cols(self, gleft=top_left, gright=top_right,
                             title=title)

        # Frequencies of alternatives
        mydata = [self.freq_alt, self.perc_alt]
        myheaders = self.alt
        mytitle = ("")
        mystubs = ["Frequencies of alternatives: ", "Percentage:"]
        tbl = SimpleTable(mydata, myheaders, mystubs, title = mytitle,
                          data_fmts = ["%5.2f"])
        smry.tables.append(tbl)

        # for parameters
        smry.add_table_params(self, alpha=alpha, use_t=False)

        return smry

    def summary(self, yname=None, xname=None, title=None, alpha=.05):
        """
        Summarize the fitted model.

        Parameters
        ----------
        yname : string, optional
            Default is `y`
        xname : list of strings, optional
            Default is `var_##` for ## in p the number of regressors
        title : string, optional
            Title for the top table. If not None, then this replaces the
            default title
        alpha : float
            significance level for the confidence intervals

        Returns
        -------
        smry : Summary instance
            this holds the summary tables and text, which can be printed or
            converted to various output formats.

        See Also
        --------
        statsmodels.iolib.summary.Summary : class to hold summary
            results

        """

        top_left = [
            ('Dep. Variable:', None),
            ('Model:', None),
            ('Log-Likelihood:', None),
            ('Method:', [self.method]),
            ('Date:', None),
            ('Time:', None),
        ]

        top_right = [
            ('No. Observations:', None),
            ('No. groups:', [self.n_groups]),
            ('Min group size:', [self._group_stats[0]]),
            ('Max group size:', [self._group_stats[1]]),
            ('Mean group size:', [self._group_stats[2]]),
        ]

        if title is None:
            title = "Conditional Logit Model Regression Results"

        # create summary tables
        from statsmodels.iolib.summary import Summary
        smry = Summary()
        smry.add_table_2cols(
            self,
            gleft=top_left,
            gright=top_right,  # [],
            yname=yname,
            xname=xname,
            title=title)
        smry.add_table_params(
            self, yname=yname, xname=xname, alpha=alpha, use_t=self.use_t)

        return smry

    def summary(self):
        """
        Constructs a summary of the results from a fit model.

        Returns
        -------
        summary : Summary instance
            Object that contains tables and facilitated export to text, html or
            latex
        """
        # Summary layout
        # 1. Overall information
        # 2. Mean parameters
        # 3. Volatility parameters
        # 4. Distribution parameters
        # 5. Notes

        model = self.model
        model_name = model.name + " - " + model.volatility.name

        # Summary Header
        top_left = [
            ("Dep. Variable:", self._dep_name),
            ("Mean Model:", model.name),
            ("Vol Model:", model.volatility.name),
            ("Distribution:", model.distribution.name),
            ("Method:", "User-specified Parameters"),
            ("", ""),
            ("Date:", self._datetime.strftime("%a, %b %d %Y")),
            ("Time:", self._datetime.strftime("%H:%M:%S")),
        ]

        top_right = [
            ("R-squared:", "--"),
            ("Adj. R-squared:", "--"),
            ("Log-Likelihood:", "%#10.6g" % self.loglikelihood),
            ("AIC:", "%#10.6g" % self.aic),
            ("BIC:", "%#10.6g" % self.bic),
            ("No. Observations:", self._nobs),
            ("", ""),
            ("", ""),
        ]

        title = model_name + " Model Results"
        stubs = []
        vals = []
        for stub, val in top_left:
            stubs.append(stub)
            vals.append([val])
        table = SimpleTable(vals, txt_fmt=fmt_2cols, title=title, stubs=stubs)

        # create summary table instance
        smry = Summary()
        # Top Table
        # Parameter table
        fmt = fmt_2cols
        fmt["data_fmts"][1] = "%18s"

        top_right = [("%-21s" % ("  " + k), v) for k, v in top_right]
        stubs = []
        vals = []
        for stub, val in top_right:
            stubs.append(stub)
            vals.append([val])
        table.extend_right(SimpleTable(vals, stubs=stubs))
        smry.tables.append(table)

        stubs = self._names
        header = ["coef"]
        vals = (self.params,)
        formats = [(10, 4)]
        pos = 0
        param_table_data = []
        for _ in range(len(vals[0])):
            row = []
            for i, val in enumerate(vals):
                if isinstance(val[pos], np.float64):
                    converted = format_float_fixed(val[pos], *formats[i])
                else:
                    converted = val[pos]
                row.append(converted)
            pos += 1
            param_table_data.append(row)

        mc = self.model.num_params
        vc = self.model.volatility.num_params
        dc = self.model.distribution.num_params
        counts = (mc, vc, dc)
        titles = ("Mean Model", "Volatility Model", "Distribution")
        total = 0
        for title, count in zip(titles, counts):
            if count == 0:
                continue

            table_data = param_table_data[total : total + count]
            table_stubs = stubs[total : total + count]
            total += count
            table = SimpleTable(table_data, stubs=table_stubs, txt_fmt=fmt_params, headers=header, title=title)
            smry.tables.append(table)

#.........这里部分代码省略.........

    def summary(self):
        """
        Summarize the fitted Model

        Returns
        -------
        smry : Summary instance
            This holds the summary table and text, which can be printed or
            converted to various output formats.

        See Also
        --------
        statsmodels.iolib.summary.Summary
        """
        from statsmodels.iolib.summary import Summary
        from statsmodels.iolib.table import SimpleTable
        model = self.model
        title = model.__class__.__name__ + ' Model Results'

        dep_variable = 'endog'
        if isinstance(self.model.endog, pd.DataFrame):
            dep_variable = self.model.endog.columns[0]
        elif isinstance(self.model.endog, pd.Series):
            dep_variable = self.model.endog.name
        seasonal_periods = None if self.model.seasonal is None else self.model.seasonal_periods
        lookup = {'add': 'Additive', 'additive': 'Additive',
                  'mul': 'Multiplicative', 'multiplicative': 'Multiplicative', None: 'None'}
        transform = self.params['use_boxcox']
        box_cox_transform = True if transform else False
        box_cox_coeff = transform if isinstance(transform, string_types) else self.params['lamda']
        if isinstance(box_cox_coeff, float):
            box_cox_coeff = '{:>10.5f}'.format(box_cox_coeff)
        top_left = [('Dep. Variable:', [dep_variable]),
                    ('Model:', [model.__class__.__name__]),
                    ('Optimized:', [str(np.any(self.optimized))]),
                    ('Trend:', [lookup[self.model.trend]]),
                    ('Seasonal:', [lookup[self.model.seasonal]]),
                    ('Seasonal Periods:', [str(seasonal_periods)]),
                    ('Box-Cox:', [str(box_cox_transform)]),
                    ('Box-Cox Coeff.:', [str(box_cox_coeff)])]

        top_right = [
            ('No. Observations:', [str(len(self.model.endog))]),
            ('SSE', ['{:5.3f}'.format(self.sse)]),
            ('AIC', ['{:5.3f}'.format(self.aic)]),
            ('BIC', ['{:5.3f}'.format(self.bic)]),
            ('AICC', ['{:5.3f}'.format(self.aicc)]),
            ('Date:', None),
            ('Time:', None)]

        smry = Summary()
        smry.add_table_2cols(self, gleft=top_left, gright=top_right,
                             title=title)
        formatted = self.params_formatted  # type: pd.DataFrame

        def _fmt(x):
            abs_x = np.abs(x)
            scale = 1
            if abs_x != 0:
                scale = int(np.log10(abs_x))
            if scale > 4 or scale < -3:
                return '{:>20.5g}'.format(x)
            dec = min(7 - scale, 7)
            fmt = '{{:>20.{0}f}}'.format(dec)
            return fmt.format(x)

        tab = []
        for _, vals in formatted.iterrows():
            tab.append([_fmt(vals.iloc[1]),
                        '{0:>20}'.format(vals.iloc[0]),
                        '{0:>20}'.format(str(bool(vals.iloc[2])))])
        params_table = SimpleTable(tab, headers=['coeff', 'code', 'optimized'],
                                   title="",
                                   stubs=list(formatted.index))

        smry.tables.append(params_table)

        return smry

    def get_statsmodels_summary(self, 
                                title=None, 
                                alpha=.05):
        """
        title:      OPTIONAL. string or None. Will be
                    the title of the returned summary.
                    If None, the default title is used.
                    
        alpha:      OPTIONAL. float. Between 0.0 and 
                    1.0. Determines the width of the
                    displayed, (1 - alpha)% confidence 
                    interval.
        ====================
        Returns:    statsmodels.summary object.
        """
        try:
            # Get the statsmodels Summary class            
            from statsmodels.iolib.summary import Summary
            # Get an instantiation of the Summary class.
            smry = Summary()

            # Get the yname and yname_list.
            # Note I'm not really sure what the yname_list is.
            new_yname, new_yname_list = self.choice_col, None

            # Get the model name
            model_name = self.model_type

            ##########
            # Note the following commands are basically directly from
            # statsmodels.discrete.discrete_model
            ##########
            top_left = [('Dep. Variable:', None),
                         ('Model:', [model_name]),
                         ('Method:', ['MLE']),
                         ('Date:', None),
                         ('Time:', None),
                #('No. iterations:', ["%d" % self.mle_retvals['iterations']]),
                         ('converged:', [str(self.estimation_success)])
                          ]

            top_right = [('No. Observations:', ["{:,}".format(self.nobs)]),
                         ('Df Residuals:', ["{:,}".format(self.df_resid)]),
                         ('Df Model:', ["{:,}".format(self.df_model)]),
                         ('Pseudo R-squ.:',
                          ["{:.3f}".format(self.rho_squared)]),
                         ('Pseudo R-bar-squ.:',
                          ["{:.3f}".format(self.rho_bar_squared)]),
                         ('Log-Likelihood:', ["{:,.3f}".format(self.llf)]),
                         ('LL-Null:', 
                          ["{:,.3f}".format(self.null_log_likelihood)]),
                         ]

            if title is None:
                title = model_name + ' ' + "Regression Results"

            xnames = self.params.index.tolist()

            # for top of table
            smry.add_table_2cols(self,
                                 gleft=top_left,
                                 gright=top_right, #[],
                                 yname=new_yname, 
                                 xname=xnames,
                                 title=title)
            # for parameters, etc
            smry.add_table_params(self,
                                  yname=[new_yname_list],
                                  xname=xnames,
                                  alpha=alpha,
                                  use_t=False)
            return smry
        except:
            print("statsmodels not installed. Resorting to standard summary")
            return self.print_summaries()

    def summary(self, yname=None, xname=None, title=None, alpha=.05):
        """Summarize the Regression Results

        Parameters
        ----------
        yname : string, optional
            Default is `y`
        xname : list of strings, optional
            Default is `var_##` for ## in p the number of regressors
        title : string, optional
            Title for the top table. If not None, then this replaces the
            default title
        alpha : float
            significance level for the confidence intervals

        Returns
        -------
        smry : Summary instance
            this holds the summary tables and text, which can be printed or
            converted to various output formats.

        See Also
        --------
        statsmodels.iolib.summary.Summary : class to hold summary results
        """
        eigvals = self.eigenvals
        condno = self.condition_number

        top_left = [('Dep. Variable:', None),
                    ('Model:', None),
                    ('Method:', ['Least Squares']),
                    ('Date:', None),
                    ('Time:', None)
                    ]

        top_right = [('Pseudo R-squared:', ["%#8.4g" % self.prsquared]),
                     ('Bandwidth:', ["%#8.4g" % self.bandwidth]),
                     ('Sparsity:', ["%#8.4g" % self.sparsity]),
                     ('No. Observations:', None),
                     ('Df Residuals:', None),
                     ('Df Model:', None)
                     ]

        if title is None:
            title = self.model.__class__.__name__ + ' ' + "Regression Results"

        # create summary table instance
        from statsmodels.iolib.summary import Summary
        smry = Summary()
        smry.add_table_2cols(self, gleft=top_left, gright=top_right,
                             yname=yname, xname=xname, title=title)
        smry.add_table_params(self, yname=yname, xname=xname, alpha=alpha,
                              use_t=self.use_t)

        # add warnings/notes, added to text format only
        etext = []
        if eigvals[-1] < 1e-10:
            wstr = "The smallest eigenvalue is %6.3g. This might indicate "
            wstr += "that there are\n"
            wstr += "strong multicollinearity problems or that the design "
            wstr += "matrix is singular."
            wstr = wstr % eigvals[-1]
            etext.append(wstr)
        elif condno > 1000:  # TODO: what is recommended
            wstr = "The condition number is large, %6.3g. This might "
            wstr += "indicate that there are\n"
            wstr += "strong multicollinearity or other numerical "
            wstr += "problems."
            wstr = wstr % condno
            etext.append(wstr)

        if etext:
            smry.add_extra_txt(etext)

        return smry

    def summary(self):
        """
        Constructs a summary of the results from a fit model.

        Returns
        -------
        summary : Summary instance
            Object that contains tables and facilitated export to text, html or
            latex
        """
        # Summary layout
        # 1. Overall information
        # 2. Mean parameters
        # 3. Volatility parameters
        # 4. Distribution parameters
        # 5. Notes

        model = self.model
        model_name = model.name + ' - ' + model.volatility.name

        # Summary Header
        top_left = [('Dep. Variable:', self._dep_name),
                    ('Mean Model:', model.name),
                    ('Vol Model:', model.volatility.name),
                    ('Distribution:', model.distribution.name),
                    ('Method:', 'Maximum Likelihood'),
                    ('', ''),
                    ('Date:', self._datetime.strftime('%a, %b %d %Y')),
                    ('Time:', self._datetime.strftime('%H:%M:%S'))]

        top_right = [('R-squared:', '%#8.3f' % self.rsquared),
                     ('Adj. R-squared:', '%#8.3f' % self.rsquared_adj),
                     ('Log-Likelihood:', '%#10.6g' % self.loglikelihood),
                     ('AIC:', '%#10.6g' % self.aic),
                     ('BIC:', '%#10.6g' % self.bic),
                     ('No. Observations:', self._nobs),
                     ('Df Residuals:', self.nobs - self.num_params),
                     ('Df Model:', self.num_params)]

        title = model_name + ' Model Results'
        stubs = []
        vals = []
        for stub, val in top_left:
            stubs.append(stub)
            vals.append([val])
        table = SimpleTable(vals, txt_fmt=fmt_2cols, title=title, stubs=stubs)

        # create summary table instance
        smry = Summary()
        # Top Table
        # Parameter table
        fmt = fmt_2cols
        fmt['data_fmts'][1] = '%18s'

        top_right = [('%-21s' % ('  ' + k), v) for k, v in top_right]
        stubs = []
        vals = []
        for stub, val in top_right:
            stubs.append(stub)
            vals.append([val])
        table.extend_right(SimpleTable(vals, stubs=stubs))
        smry.tables.append(table)

        conf_int = np.asarray(self.conf_int())
        conf_int_str = []
        for c in conf_int:
            conf_int_str.append('[' + format_float_fixed(c[0], 7, 3)
                                + ',' + format_float_fixed(c[1], 7, 3) + ']')

        stubs = self._names
        header = ['coef', 'std err', 't', 'P>|t|', '95.0% Conf. Int.']
        vals = (self.params,
                self.std_err,
                self.tvalues,
                self.pvalues,
                conf_int_str)
        formats = [(10, 4), (9, 3), (9, 3), (9, 3), None]
        pos = 0
        param_table_data = []
        for _ in range(len(vals[0])):
            row = []
            for i, val in enumerate(vals):
                if isinstance(val[pos], np.float64):
                    converted = format_float_fixed(val[pos], *formats[i])
                else:
                    converted = val[pos]
                row.append(converted)
            pos += 1
            param_table_data.append(row)

        mc = self.model.num_params
        vc = self.model.volatility.num_params
        dc = self.model.distribution.num_params
        counts = (mc, vc, dc)
        titles = ('Mean Model', 'Volatility Model', 'Distribution')
        total = 0
        for title, count in zip(titles, counts):
            if count == 0:
                continue

#.........这里部分代码省略.........