Correlation and scatter matrix

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Hyprocup147
Posts: 2
Joined: Wed Jul 16, 2014 7:50 pm

Correlation and scatter matrix

Postby Hyprocup147 » Fri Jul 18, 2014 1:45 pm

Hi,

Is it useful to include (categorical) dummy-variables in a correlation and/or scatter matrix?

I thought it was only useful to include quantitative/numerical variables but not 100% sure about this.

Thanks for the help!
GerineL
Moderator
Posts: 1477
Joined: Tue Jun 10, 2008 4:50 pm

Re: Correlation and scatter matrix

Postby GerineL » Mon Aug 11, 2014 2:56 pm

There is discussion about that. Some people do it, I think it makes no sense whatsoever.
There are published articles that use this approach, but I prefer doing t-tests with dichotomous variables....

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