dummy.code: Create dummy coded variables
In frenchja/psych: Procedures for Psychological, Psychometric, and Personality Research
Description
Usage
Arguments
Details
Value
Author(s)
Examples
Description
Given a variable x with n distinct values, create n new dummy coded variables coded 0/1 for presence (1) or absence (0) of each variable. A typical application would be to create dummy coded college majors from a vector of college majors.
Usage
1
dummy.code(x)
Arguments
x
A vector to be transformed into dummy codes
Details
When coding demographic information, it is typical to create one variable with multiple categorical values (e.g., ethnicity, college major, occupation). dummy.code will convert these categories into n distinct dummy coded variables.
If using dummy coded variables as predictors, remember to use n-1 variables.
Value
A matrix of dummy coded variables
Author(s)
William Revelle
Examples
1
2
3
new <- dummy.code(sat.act$education)
new.sat <- data.frame(new,sat.act)
round(cor(new.sat,use="pairwise"),2)
frenchja/psych documentation built on May 16, 2019, 2:49 p.m.
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Description Usage Arguments Details Value Author(s) Examples
Description
Given a variable x with n distinct values, create n new dummy coded variables coded 0/1 for presence (1) or absence (0) of each variable. A typical application would be to create dummy coded college majors from a vector of college majors.
Usage
1 | dummy.code(x)
|
Arguments
x |
A vector to be transformed into dummy codes |
Details
When coding demographic information, it is typical to create one variable with multiple categorical values (e.g., ethnicity, college major, occupation). dummy.code will convert these categories into n distinct dummy coded variables.
If using dummy coded variables as predictors, remember to use n-1 variables.
Value
A matrix of dummy coded variables
Author(s)
William Revelle
Examples
1 2 3 | new <- dummy.code(sat.act$education)
new.sat <- data.frame(new,sat.act)
round(cor(new.sat,use="pairwise"),2)
|
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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