@vaex.utils.deprecated('<STR_LIT>')<EOL><INDENT>def _hstack(self, other, prefix=None):<DEDENT>
assert len(self) == len(other), "<STR_LIT>"<EOL>for name in other.get_column_names():<EOL><INDENT>if prefix:<EOL><INDENT>new_name = prefix + name<EOL><DEDENT>else:<EOL><INDENT>new_name = name<EOL><DEDENT>self.add_column(new_name, other.columns[name])<EOL><DEDENT>
Join the columns of the other DataFrame to this one, assuming the ordering is the same