def nud(self):
        raise SyntaxError('Syntax error %r' % (self.ident,))
covariance matrix
dataset/ETHPy150Open tehmaze/nagios-cli/nagios_cli/filters/parser.py/SymbolBase.nud--crossover with--dataset/ETHPy150Open statsmodels/statsmodels/statsmodels/sandbox/distributions/mv_normal.py/MVT.cov