protected override void Context()
 {
     base.Context();
     _covariate     = "Covariate";
     _covariateNode = new CovariateNode(_covariate);
     sut.StartAnalysis(_populationDataCollector, _populationPivotAnalysis);
 }
 protected override void Context()
 {
     base.Context();
     _covariateNode = new CovariateNode("Gender");
     sut.CovariateNodeDoubleClicked += (o, e) => { _covariateNodeDoubleClicked = true; };
 }