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How to use hist_to_quant method in yandex-tank

Best Python code snippet using yandex-tank

screen.py

Source:screen.py

...564            if ts - second > 60:565                self.last_min.pop(second)566        self.last_min[ts] = dist567    def __calc_percentiles(self):568        def hist_to_quant(histogram, quant):569            cumulative = histogram.cumsum()570            total = cumulative.max()571            positions = cumulative.searchsorted([float(i) / 100 * total for i in quant])572            quant_times = [cumulative.index[i] / 1000. for i in positions]573            return quant_times574        all_times = hist_to_quant(self.overall, self.quantiles)575        last_data = self.last_min[max(self.last_min.keys())]576        last_times = hist_to_quant(last_data, self.quantiles)577        # Check if we have precise data for last second quantiles instead of binned histogram578        for position, q in enumerate(self.quantiles):579            if q in self.precise_quantiles:580                last_times[position] = self.precise_quantiles[q]581        # Replace binned values with precise, if lower quantile bin happens to be582        # greater than upper quantile precise values583        for position in reversed(range(1, len(last_times))):584            if last_times[position - 1] > last_times[position]:585                last_times[position - 1] = last_times[position]586        last_1m = pd.Series()587        for ts, data in self.last_min.items():588            if last_1m.empty:589                last_1m = data590            else:591                last_1m = last_1m.add(data, fill_value=0)592        last_1m_times = hist_to_quant(last_1m, self.quantiles)593        quant_times = reversed(594            list(zip(self.quantiles, all_times, last_1m_times, last_times))595        )596        data = []597        for q, all_time, last_1m, last_time in quant_times:598            data.append({599                'quantile': q,600                'all': all_time,601                'last_1m': last_1m,602                'last': last_time603            })604        return data605    def render(self, expected_width=None):606        prepared = [(self.screen.markup.WHITE, self.title)]...

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