R Dataset / Package MASS / wtloss

Submitted by pmagunia on March 9, 2018 - 1:06 PM
Dataset License
GNU General Public License v2.0
Attachment Size
dataset-99210.csv 515 bytes
Documentation

Weight Loss Data from an Obese Patient

Description

The data frame gives the weight, in kilograms, of an obese patient at 52 time points over an 8 month period of a weight rehabilitation programme.

Usage

wtloss

Format

This data frame contains the following columns:

Days

time in days since the start of the programme.

Weight

weight in kilograms of the patient.

Source

Dr T. Davies, Adelaide.

References

Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

Examples

wtloss.fm <- nls(Weight ~ b0 + b1*2^(-Days/th),
    data = wtloss, start = list(b0=90, b1=95, th=120))
wtloss.fm
plot(wtloss)
with(wtloss, lines(Days, fitted(wtloss.fm)))
--

Dataset imported from https://www.r-project.org.

Documentation License
GNU General Public License v2.0

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