qualitative variable

qualitative variable

A variable which is not measurable on a continuum or represented in a quantitative relation to a scale—e.g., race, sex. Qualitative variables fit into discrete categories based on their attributes.
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Because of the incomplete information used by QS, each qualitative variable yields next value set rather than a single value.
For the qualitative variable distribution, the absolute frequencies of each category were used and Fisher's test was administered.
When qualitative variable has more than two possibilities, we give them marks or, depending on the case, numbers of order, respective to their status wherein they act.
All quantitative variables were used in log form, whereas distance was included as a qualitative variable (dummy variable) and it was taken without log.
A surprising outcome that is associated with these results is that, similar to what is documented in Tables 4 and 8, a negative sign consistently occurs for the PARK qualitative variable. Other studies (Cheshire and Sheppard 1995; Lang and Nelson 2007) have often indicated that such a neighborhood amenity increases housing values.
The organization of each qualitative variable's levels is shown in chart 5 below, according to what was described respectively in charts 2, 3 and 4:
This nominal qualitative variable is divided into the following categories: public elementary school, private or hybrid; public high school, private or hybrid.
I also created a qualitative variable to identify companies with 2004 capital expenditures of more than $1 billion (high).
First, to consider the different values of a quantitative variable or an ordinal variable as levels of a multistage qualitative variable omits the sense of ordering that they imply.
The process of shifting the interpretive framework of binary-coded coefficients can be made without the use of a computer program by adding a constant, k, to the coefficients within each set of coefficients for a qualitative variable and subtracting k from the regression equation constant or intercept.
To further automate the process, and since the user can never be sure which qualitative variable values exist initially, UNIX loop structures and AWK procedures are used to determine which variable values exist from the grade shell name, automatically creating the required BCF file and populating the respective block model variables.

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