emesis: Motion sickness study.

emesisR Documentation

Motion sickness study.

Description

The data are from an experiment that investigated sickness from simulated sea motion. Subjects were put into a cabin mounted on a hydraulic piston and subjected to vertical motion for up to two hours. The length of time until each subject vomited was recorded. Note that some observations are right-censored.

Usage

emesis

Format

A data frame with 49 observations and three variables:

minutes:

minutes until the subjecte vomited

censored:

whether or not the time is censored (yes or no)

motion:

simulated sea motion condition (a: frequency of 0.167 Hz and acceleration of 0.111g, b: frequency of 0.333Hz and acceleration of 0.222g)

Details

These data are from Burns (1984) but are also featured in Hand et al. (1994).

Source

Burns, K. C. (1984). Motion sickness incidence: Distribution of time to first emesis and comparison of some complex motion conditions. Aviation Space and Environmental Medicine, 56, 521-527.

Hand, D. J., Daly, F., McConway, K., Lunn, D., & Ostrowski, E. (1994). A handbook of small data sets. Chapman & Hall.


trobinj/trtools documentation built on Jan. 28, 2024, 3:20 a.m.