A data frame containing the estimates of the percentage of body fat
determined by underwater weighing and various body circumference
measurements for 252 men.
Source: Roger W. Johnson (1996), ''Fitting Percentage of Body Fat to
Simple Body Measurements'', Journal of Statistics Education.
Original data are from K. Penrose, A. Nelson, and A. Fisher (1985),
''Generalized Body Composition Prediction Equation for Men Using
Simple Measurement Techniques'' (abstract), Medicine and Science in
Sports and Exercise, 17(2), 189.
Data were supplied by Dr. A. Garth Fisher, Human Performance Research
Center, Brigham Young University, who gave permission to freely distribute
the data and use them for non-commercial purposes.
Note, however, that there seem to be a few errors.
For instance, body densities for cases 48, 76, and 96 seem to have one digit
in error in the two body fat percentage values.
Also note a man (case 42) over 200 pounds in weight who is less than 3 feet tall
(the height should presumably be 69.5 inches, not 29.5 inches).
Percent body fat estimates are truncated to zero when negative (case 182).