3.2.2 About the NARROW Data Set for Examples

Many of the examples of the exploratory data analysis functions use the NARROW data set. NARROW is an ore.frame that has 9 columns and 1500 rows, as shown in Example 3-23. Some of the columns are numeric, others are not.

Example 3-23 The NARROW Data Set

This example shows the class, dimensions, and names of the NARROW object.

R> class(NARROW)
R> dim(NARROW)
R> names(NARROW)

Listing for Example 3-23

R> class(NARROW)
[1] "ore.frame"
attr(,"package")
[1] "OREbase"
R> dim(NARROW)[1] 1500    9
R> names(NARROW)
[1] "ID"             "GENDER"         "AGE"            "MARITAL_STATUS"
[5] "COUNTRY"        "EDUCATION"      "OCCUPATION"     "YRS_RESIDENCE" 
[9] "CLASS"