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Interpreting the variable importance report

marthe_haarr

Community Trekker

Joined:

Jun 16, 2016

Hi. I am wondering if anyone can help me clarify the output of the variable importance report. For the main effect, when it states that this "reflects the relative contribution of that factor alone", does this mean the contribution to the total amount of variance explained in the model? In other words, would the ratio of this value to the sum of main effects for all the independent variables equal the percentage of the total varience explained by the model that is attributed to that particular variable? Thanks, Marthe