Multivariate analysis

Maximum recommended explanatory variables
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
Mapping modalities
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
Imputation to replace missing data
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...
Sun, 15 Nov, 2020 at 5:39 AM
Multicollinearity
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
Intercept in multivariate analysis
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
Multivariate analysis
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
Explanatory variables
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
Linearity assessment in multivariate analysis
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
Response variable
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
Heteroskedasticity and autocorrelation
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