## Multivariate analysis

Why is the number of variables limited in multivariate analysis?  The number of explanatory variables you can add in a model is limited: it is important...
Sun, 15 Nov, 2020 at 4:53 AM
To group modalities of a categorical variable together:  In Multivariate analysis, choose the variable to explain and the explanatory variables. Click on...
Mon, 16 Nov, 2020 at 8:02 AM
What is the consequence of missing data?  If your dataset contains missing data, then the multivariate analysis will be performed only on the complete case...
Tue, 8 Dec, 2020 at 10:06 AM
What is multicollinearity?  The existence of multicollinearity between your explanatory variables means that they are strongly dependent on each other. ...
Fri, 13 Nov, 2020 at 8:13 AM
What is the intercept ? The intercept is the point where the regression line crosses the y axis i.e. when the explanatory variables are all equal to zero. ...
Mon, 23 Nov, 2020 at 11:06 AM
What is a multivariate analysis?  In biomedical research, an usual goal is to assess the effect of environmental, psycho-social or medical factors on the o...
Mon, 23 Nov, 2020 at 11:06 AM
What are explanatory variables in multivariate analysis? The aim of a multivariate analysis is to assess the factors influencing a studied variable, cal...
Fri, 13 Nov, 2020 at 9:51 AM
Linear regression implies that there is a linear relationship (linearity) between the variable to explain and the numeric explanatory variables. Logistic re...
Mon, 23 Nov, 2020 at 10:47 AM
What is a response variable in multivariate analysis? The aim of a multivariate analysis is to assess the effect of environmental, psycho-social or medical...
Mon, 16 Nov, 2020 at 10:57 AM
What are the heteroskedasticity and autocorrelation of residuals?  To be reliable, a multivariate analysis model has to verify some conditions. Two of them...
Mon, 16 Nov, 2020 at 12:01 PM