def filter_raw(self, filter_):
        return self._clone(next_step=('filter_raw', filter_))
Take a two dimensional grid, add subplots to a figure for each cell and do
dataset/ETHPy150Open mozilla/elasticutils/elasticutils/__init__.py/S.filter_raw--crossover with--dataset/ETHPy150Open pydata/pandas/pandas/tools/rplot.py/work_grid