I want to create an MFA using the dedicated function in the FactoMineR package. However, certain variable modalities tend to strongly influence the final structure of the space. I would therefore like to make these modalities passive in this factor space calculation. I have the impression that, as with the MCAs, the excl parameter can be used to do this by specifying the terms to be excluded for each group of variables.
Unfortunately, I don't understand how this parameter should be set. Does anyone know how to set this parameter?