A two-valued qualitative variable can be represented by a single 0-or-1-valued "dummy" variable. If a qualitative variable has three or more possible values (e.g., make-of-car, or marital-status), ...
This paper proposes a method for analysing relations between a qualitative variable and a group of quantitative variables. The method is an extension of known results concerning the analysis of ...
Expertise from Forbes Councils members, operated under license. Opinions expressed are those of the author. A human craving for simplicity is hindering retail’s optimization of artificial intelligence ...
When some variables are quantitative and some qualitative in a response-surface context, standard designs may not be suitable. The reasons for this are illuminated. Some alternative designs are ...
The LOGISTIC procedure in SAS/STAT software fits linear logistic regression models for binary or ordinal response data by the method of maximum likelihood. Subsets of explanatory variables can be ...
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