The data in iron.dat are derived from a study of iron absorption from soy
formula. The data involve measurements made on healthy multiparous
women who drank 0.24 L of a soy formula marked with radioactive iron
and 3 mg of a solution of ferrous sulphate marked with a different isotope
of iron. Of interest here is prediction of iron absorption from hemoglobin
level and iron concentration as percent of iron-binding capacity. There is
no clean issue of cause and effect here. The blood measurements examined
here were all made at the same time. You are free to transform the data
as you see fit. It is certainly of interest to know if the iron absorption
is related either to hemoglobin level or to the ratio of concentration to
binding capacity.

  A	H     R
  6.17   9.9   3.9
  4.35  10.0   2.7
  1.36  14.8  18.9
  3.78   9.8   3.0
  1.29  14.5  26.1
  5.38   8.2   2.0
  3.52  13.8  10.0
   .66  14.2  25.6
  2.45  15.8  17.3
  1.44  13.1  20.7
  1.79  15.0  15.6
   .79  14.0  25.9
  1.02  12.9  39.4
   .47  15.2  32.9
   .31  14.6  27.9
  2.02  15.6  35.8

A 	Aborption of iron as percent of dose
H 	Hemoglobin level in g/dL
R	Iron concentration as percent of iron-binding capacity