Convert Factor to Dummy Indicator Variables for Every Level in R (Example) | model.matrix Function

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x2 = 1,
x3 = 2)

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Комментарии
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Excellent video Joachim!
I like the fact that there is a great variety of topics among your videos, and that each topic is explained well!!

agsoutas
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Thanks for making this video. As I m just new to R, I was confused when we transverse the data as it changes into matrix table. Now I got the answer to it. I would advise please don't be in hurry to sum up.

kishenjit
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How would you make two factor variables into dummies? Would you need two lines of model matrix, or is there a one liner for this?

danielboesing
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Thank you very much, Joachim. However, what I have studied is that we always create dummy variables equal to n - 1, where n is the number of categories. Can you show us the code on how to do that, please? Thanks! :)

eramitvajpeyee
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How do I choose a different base category ?

christianrender