The other regression statistic that becomes difficult to interpret after this one-into-many process is the significance level. If some of the dummy variables have large significance levels, and others ...

When dummy variables are used to incorporate categorical information into a regression equation, it is standard procedure to use one less dummy variable than the number of categories considered. This ...

Indeed, many commercially-available regression-analysis packages contain specific features to facilitate the construction of new variables (i.e., new columns of data) from products of existing ...

AirEntrain is a categorical (yes/no) variable and cannot be used in regression without transforming it to a numerical {0,1} dummy/indicator variable. We can use our recoding skills from Lesson 5 to do ...

The British Journal of Criminology, Vol. 44, No. 2 (MARCH 2004), pp. 276-283 (8 pages) Rates of property crime (burglary and theft) in Hong Kong for the period 1991—2000 were analysed to determine ...