Example #1
0
    def get_result(self):
        if self._is_series:
            if self.axis == 0:
                new_data = com._concat_compat([x.get_values() for x in self.objs])
                name = com._consensus_name_attr(self.objs)
                return Series(new_data, index=self.new_axes[0], name=name).__finalize__(self, method='concat')
            else:
                data = dict(zip(range(len(self.objs)), self.objs))
                index, columns = self.new_axes
                tmpdf = DataFrame(data, index=index)
                if columns is not None:
                    tmpdf.columns = columns
                return tmpdf.__finalize__(self, method='concat')
        else:
            mgrs_indexers = []
            for obj in self.objs:
                mgr = obj._data
                indexers = {}
                for ax, new_labels in enumerate(self.new_axes):
                    if ax == self.axis:
                        # Suppress reindexing on concat axis
                        continue

                    obj_labels = mgr.axes[ax]
                    if not new_labels.equals(obj_labels):
                        indexers[ax] = obj_labels.reindex(new_labels)[1]

                mgrs_indexers.append((obj._data, indexers))

            new_data = concatenate_block_managers(
                mgrs_indexers, self.new_axes, concat_axis=self.axis, copy=True)

            return self.objs[0]._from_axes(new_data, self.new_axes).__finalize__(self, method='concat')
Example #2
0
    def get_result(self):
        if self._is_series:
            if self.axis == 0:
                new_data = com._concat_compat([x.get_values() for x in self.objs])
                name = com._consensus_name_attr(self.objs)
                return Series(new_data, index=self.new_axes[0], name=name).__finalize__(self, method='concat')
            else:
                data = dict(zip(range(len(self.objs)), self.objs))
                index, columns = self.new_axes
                tmpdf = DataFrame(data, index=index)
                if columns is not None:
                    tmpdf.columns = columns
                return tmpdf.__finalize__(self, method='concat')
        else:
            mgrs_indexers = []
            for obj in self.objs:
                mgr = obj._data
                indexers = {}
                for ax, new_labels in enumerate(self.new_axes):
                    if ax == self.axis:
                        # Suppress reindexing on concat axis
                        continue

                    obj_labels = mgr.axes[ax]
                    if not new_labels.equals(obj_labels):
                        indexers[ax] = obj_labels.reindex(new_labels)[1]

                mgrs_indexers.append((obj._data, indexers))

            new_data = concatenate_block_managers(
                mgrs_indexers, self.new_axes, concat_axis=self.axis, copy=self.copy)
            if not self.copy:
                new_data._consolidate_inplace()

            return self.objs[0]._from_axes(new_data, self.new_axes).__finalize__(self, method='concat')
Example #3
0
    def get_result(self):

        # series only
        if self._is_series:

            # stack blocks
            if self.axis == 0:
                new_data = com._concat_compat([x._values for x in self.objs])
                name = com._consensus_name_attr(self.objs)
                return (Series(new_data, index=self.new_axes[0],
                               name=name,
                               dtype=new_data.dtype)
                        .__finalize__(self, method='concat'))

            # combine as columns in a frame
            else:
                data = dict(zip(range(len(self.objs)), self.objs))
                index, columns = self.new_axes
                tmpdf = DataFrame(data, index=index)
                # checks if the column variable already stores valid column
                # names (because set via the 'key' argument in the 'concat'
                # function call. If that's not the case, use the series names
                # as column names
                if (columns.equals(Index(np.arange(len(self.objs)))) and
                        not self.ignore_index):
                    columns = np.array([data[i].name
                                        for i in range(len(data))],
                                       dtype='object')
                    indexer = isnull(columns)
                    if indexer.any():
                        columns[indexer] = np.arange(len(indexer[indexer]))
                tmpdf.columns = columns
                return tmpdf.__finalize__(self, method='concat')

        # combine block managers
        else:
            mgrs_indexers = []
            for obj in self.objs:
                mgr = obj._data
                indexers = {}
                for ax, new_labels in enumerate(self.new_axes):
                    if ax == self.axis:
                        # Suppress reindexing on concat axis
                        continue

                    obj_labels = mgr.axes[ax]
                    if not new_labels.equals(obj_labels):
                        indexers[ax] = obj_labels.reindex(new_labels)[1]

                mgrs_indexers.append((obj._data, indexers))

            new_data = concatenate_block_managers(
                mgrs_indexers, self.new_axes,
                concat_axis=self.axis, copy=self.copy)
            if not self.copy:
                new_data._consolidate_inplace()

            return (self.objs[0]._from_axes(new_data, self.new_axes)
                    .__finalize__(self, method='concat'))
Example #4
0
    def get_result(self):

        # series only
        if self._is_series:

            # stack blocks
            if self.axis == 0:
                # concat Series with length to keep dtype as much
                non_empties = [x for x in self.objs if len(x) > 0]
                if len(non_empties) > 0:
                    values = [x._values for x in non_empties]
                else:
                    values = [x._values for x in self.objs]
                new_data = _concat._concat_compat(values)

                name = com._consensus_name_attr(self.objs)
                cons = _concat._get_series_result_type(new_data)

                return (cons(new_data, index=self.new_axes[0],
                             name=name, dtype=new_data.dtype)
                        .__finalize__(self, method='concat'))

            # combine as columns in a frame
            else:
                data = dict(zip(range(len(self.objs)), self.objs))
                cons = _concat._get_series_result_type(data)

                index, columns = self.new_axes
                df = cons(data, index=index)
                df.columns = columns
                return df.__finalize__(self, method='concat')

        # combine block managers
        else:
            mgrs_indexers = []
            for obj in self.objs:
                mgr = obj._data
                indexers = {}
                for ax, new_labels in enumerate(self.new_axes):
                    if ax == self.axis:
                        # Suppress reindexing on concat axis
                        continue

                    obj_labels = mgr.axes[ax]
                    if not new_labels.equals(obj_labels):
                        indexers[ax] = obj_labels.reindex(new_labels)[1]

                mgrs_indexers.append((obj._data, indexers))

            new_data = concatenate_block_managers(mgrs_indexers,
                                                  self.new_axes,
                                                  concat_axis=self.axis,
                                                  copy=self.copy)
            if not self.copy:
                new_data._consolidate_inplace()

            cons = _concat._get_frame_result_type(new_data, self.objs)
            return (cons._from_axes(new_data, self.new_axes)
                    .__finalize__(self, method='concat'))
Example #5
0
    def get_result(self):

        # series only
        if self._is_series:

            # stack blocks
            if self.axis == 0:
                # concat Series with length to keep dtype as much
                non_empties = [x for x in self.objs if len(x) > 0]
                if len(non_empties) > 0:
                    values = [x._values for x in non_empties]
                else:
                    values = [x._values for x in self.objs]
                new_data = _concat._concat_compat(values)

                name = com._consensus_name_attr(self.objs)
                cons = _concat._get_series_result_type(new_data)

                return (cons(new_data, index=self.new_axes[0],
                             name=name, dtype=new_data.dtype)
                        .__finalize__(self, method='concat'))

            # combine as columns in a frame
            else:
                data = dict(zip(range(len(self.objs)), self.objs))
                cons = _concat._get_series_result_type(data)

                index, columns = self.new_axes
                df = cons(data, index=index)
                df.columns = columns
                return df.__finalize__(self, method='concat')

        # combine block managers
        else:
            mgrs_indexers = []
            for obj in self.objs:
                mgr = obj._data
                indexers = {}
                for ax, new_labels in enumerate(self.new_axes):
                    if ax == self.axis:
                        # Suppress reindexing on concat axis
                        continue

                    obj_labels = mgr.axes[ax]
                    if not new_labels.equals(obj_labels):
                        indexers[ax] = obj_labels.reindex(new_labels)[1]

                mgrs_indexers.append((obj._data, indexers))

            new_data = concatenate_block_managers(mgrs_indexers,
                                                  self.new_axes,
                                                  concat_axis=self.axis,
                                                  copy=self.copy)
            if not self.copy:
                new_data._consolidate_inplace()

            cons = _concat._get_frame_result_type(new_data, self.objs)
            return (cons._from_axes(new_data, self.new_axes)
                    .__finalize__(self, method='concat'))
Example #6
0
 def get_result(self):
     if self._is_series and self.axis == 0:
         new_data = np.concatenate([x.values for x in self.objs])
         name = com._consensus_name_attr(self.objs)
         return Series(new_data, index=self.new_axes[0], name=name)
     elif self._is_series:
         data = dict(zip(self.new_axes[1], self.objs))
         return DataFrame(data, index=self.new_axes[0], columns=self.new_axes[1])
     else:
         new_data = self._get_concatenated_data()
         return self.objs[0]._from_axes(new_data, self.new_axes)
Example #7
0
 def get_result(self):
     if self._is_series and self.axis == 0:
         new_data = com._concat_compat([x.values for x in self.objs])
         name = com._consensus_name_attr(self.objs)
         return Series(new_data, index=self.new_axes[0], name=name)
     elif self._is_series:
         data = dict(zip(self.new_axes[1], self.objs))
         return DataFrame(data, index=self.new_axes[0],
                          columns=self.new_axes[1])
     else:
         new_data = self._get_concatenated_data()
         return self.objs[0]._from_axes(new_data, self.new_axes)
Example #8
0
 def get_result(self):
     if self._is_series and self.axis == 0:
         new_data = com._concat_compat([x.values for x in self.objs])
         name = com._consensus_name_attr(self.objs)
         return Series(new_data, index=self.new_axes[0], name=name)
     elif self._is_series:
         data = dict(itertools.izip(xrange(len(self.objs)), self.objs))
         tmpdf = DataFrame(data, index=self.new_axes[0])
         tmpdf.columns = self.new_axes[1]
         return tmpdf
     else:
         new_data = self._get_concatenated_data()
         return self.objs[0]._from_axes(new_data, self.new_axes)
Example #9
0
 def get_result(self):
     if self._is_series and self.axis == 0:
         new_data = com._concat_compat([x.values for x in self.objs])
         name = com._consensus_name_attr(self.objs)
         return Series(new_data, index=self.new_axes[0], name=name)
     elif self._is_series:
         data = dict(itertools.izip(xrange(len(self.objs)), self.objs))
         tmpdf = DataFrame(data, index=self.new_axes[0])
         tmpdf.columns = self.new_axes[1]
         return tmpdf
     else:
         new_data = self._get_concatenated_data()
         return self.objs[0]._from_axes(new_data, self.new_axes)
Example #10
0
 def get_result(self):
     if self._is_series and self.axis == 0:
         new_data = com._concat_compat([x.get_values() for x in self.objs])
         name = com._consensus_name_attr(self.objs)
         new_data = self._post_merge(new_data)
         return Series(new_data, index=self.new_axes[0], name=name)
     elif self._is_series:
         data = dict(zip(range(len(self.objs)), self.objs))
         index, columns = self.new_axes
         tmpdf = DataFrame(data, index=index)
         if columns is not None:
             tmpdf.columns = columns
         return tmpdf
     else:
         new_data = self._get_concatenated_data()
         new_data = self._post_merge(new_data)
         return self.objs[0]._from_axes(new_data, self.new_axes)
Example #11
0
 def get_result(self):
     if self._is_series and self.axis == 0:
         new_data = com._concat_compat([x.get_values() for x in self.objs])
         name = com._consensus_name_attr(self.objs)
         new_data = self._post_merge(new_data)
         return Series(new_data, index=self.new_axes[0], name=name)
     elif self._is_series:
         data = dict(zip(range(len(self.objs)), self.objs))
         index, columns = self.new_axes
         tmpdf = DataFrame(data, index=index)
         if columns is not None:
             tmpdf.columns = columns
         return tmpdf
     else:
         new_data = self._get_concatenated_data()
         new_data = self._post_merge(new_data)
         return self.objs[0]._from_axes(new_data, self.new_axes)