Help with interpretation of an MFA

[Daniela Cid]

Hello,

I'm new in the group and I have some questions regarding the interpretation of my results. 

I have a set of categorical variables obtained from a Survey mixed with numerical data. Since I can group them into different "types" of variables I am doing an MFA. 

I'm trying to understand the relationship between one of the categorical variables (Functionality = "Functional", "not functional in less than a year", "not functional in more than a year") with the rest of the data.  

So I'm checking in which dimensions Functionality has a significative contribution and look at the correlations of functionality with the other variables in that dimension using the "Categories - Estimate -p.value" table (and the group representation chart)

Is this approach correct? Am I missing things?

Thank you very much!!

[Francois Husson]

Hello,
Yes you are right. Do not hesitate to have a look at these videos:
Theorectical and practical informations on Multiple Factor Analysis are available in these 4 course videos:

1. Introduction
2. Weighting and global PCA
3. Study of the groups of variables
4. Complements: qualitative groups, frenquency tables

Best
FH

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[Daniela Cid]

Thank you very much :)

One last question, The estimate is an indicator of a correlation? 

what does an estimate higher than 1 mean?

I am considering the categories with an estimate higher than 0.6

[Francois Husson]

The estimate in your case, is the estimate of the coefficient of the category in the 1-way analysis of variance (the variable Y is the coordinate of the individuals on a dimension, and the explain variable is the categorical variable you are interested in).

FH

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