wtloss

0th

Percentile

Weight Loss Data from an Obese Patient

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.

Keywords
datasets
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.

References

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

Aliases
  • wtloss
Examples
# NOT RUN {
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)))
# }
Documentation reproduced from package MASS, version 7.3-51.4, License: GPL-2 | GPL-3

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