code: def mline_point_(self, col, x=None, y=None, rsum=None, rmean=None):
  		
  		line = self._multiseries(col, x, y, "line", rsum, rmean)
  		point = self._multiseries(col, x, y, "point", rsum, rmean)
  		return line * point
docs: Splits a column into multiple series based on the column's
  		unique values. Then visualize theses series in a chart.
  		Parameters: column to split, x axis column, y axis column
  		Optional: rsum="1D" to resample and sum data an rmean="1D"
  		to mean the data