Gifi methods - homals - PCA for categorical data

[@danielalcidesmaravibarrera2780]

I like your explanation. Im trying to use this in dataset with numerical and ordinal questions

[@brunobarreto8812]

When you use only categorical data where the options for the question are the same, you don't need to normalize the data?

[@statisticsninja]

For that situation the data are all on the same measurement scale, so I would not normalize. If I had data on different scales, height in inches and weight in lbs, then I normalize.

[@KaustubhAmle]

Could you give us your Jupyter notebook?

[@statisticsninja]

I posted my R markdown file to the shared files section of my website.