@Substitution(name='<STR_LIT>')<EOL><INDENT>@Appender(_doc_template)<EOL>@Appender(_bias_template)<EOL>def var(self, bias=False, *args, **kwargs):<DEDENT>
nv.validate_window_func('<STR_LIT>', args, kwargs)<EOL>def f(arg):<EOL><INDENT>return libwindow.ewmcov(arg, arg, self.com, int(self.adjust),<EOL>int(self.ignore_na), int(self.min_periods),<EOL>int(bias))<EOL><DEDENT>return self._apply(f, **kwargs)<EOL>
Exponential weighted moving variance.