# Frequency Distribution of Qualitative Data

The frequency distribution of a data variable is a summary of the data occurrence in a collection of non-overlapping categories.

#### Example

In the data set painters, the frequency distribution of the School variable is a summary of the number of painters in each school.

#### Problem

Find the frequency distribution of the painter schools in the data set painters.

#### Solution

We apply the table function to compute the frequency distribution of the School variable.

> library(MASS)                 # load the MASS package
> school = painters\$School      # the painter schools
> school.freq = table(school)   # apply the table function

The frequency distribution of the schools is:

> school.freq
school
A  B  C  D  E  F  G  H
10  6  6 10  7  4  7  4

#### Enhanced Solution

We apply the cbind function to print the result in column format.

> cbind(school.freq)
school.freq
A          10
B           6
C           6
D          10
E           7
F           4
G           7
H           4

#### Exercise

1. Find the frequency distribution of the composition scores in painters.
2. Find programmatically the school that has the most painters.