druguse: Drug Rates Correlations

In quantide/qdata: Quantide's data for R courses

Description

The druguse data contains the correlation matrix among rates (recorded on a 5-point scale) for a sample of 1,634 students in the seventh to ninth grades in 11 schools in the greater metropolitan area of Los Angeles. Each participant completed a questionnaire about the number of times a particular substance had ever been used.

Usage

data(druguse)

Format

druguse is a 13 x 13 correlation matrix.

Details

The 13 substances asked about, which are also the row and columns names of the matrix, were the following ones:

• cigarettes;

• beer;

• wine;

• liquor;

• cocaine;

• tranquillizers;

• drug store medications used to get high;

• heroin and other opiates;

• marijuana;

• hashish;

• inhalants (glue, gasoline, etc.);

• hallucinogenics (LSD, mescaline, etc.);

• amphetamine stimulants.

Source

Everitt, B. and Hothorn, T., *An Introduction to Applied Multivariate Analysis with 'R'*, Springer, 2011

quantide/qdata documentation built on May 26, 2019, 12:36 p.m.