def _make_source_rowindex(self):
col = self._coldt.internal.column(0)
ri = core.rowindex_from_column(col)
if ri.max >= self._engine.dt.nrows:
raise ValueError("The data column contains index %d which is "
"not allowed for a Frame with %d rows" %
(ri.max, self._engine.dt.nrows))
return ri
def _make_final_rowindex(self):
ee = self._engine
nrows = ee.dt.nrows
if isinstance(ee, LlvmEvaluationEngine):
ptr = ee.get_result(self._fnname)
return core.rowindex_from_filterfn(ptr, nrows)
else:
col = self._expr.evaluate_eager(self._engine)
rowindex = core.rowindex_from_column(col)
if self._inverse:
rowindex = rowindex.inverse(nrows)
if ee.rowindex:
rowindex = rowindex.uplift(ee.rowindex)
return rowindex
def _make_source_rowindex(self):
col = self._coldt.internal.column(0)
return core.rowindex_from_column(col)