# x02.txt
#
# Reference:
#
# Helmut Spaeth,
# Mathematical Algorithms for Linear Regression,
# Academic Press, 1991, page 304,
# ISBN 0-12-656460-4.
#
# S Weisberg,
# Applied Linear Regression,
# Wiley, 1980, page 218.
#
# Discussion:
#
# For 12 young patients, catheters were fed from a principal vein
# into the heart. The necessary catheter length was measured.
# The height and weight of the patients was noted.
#
# There are 12 rows of data. The data columns include:
#
# I, the index;
# A1, the height;
# A2, the weight;
# B, the catheter length.
#
# We seek a model of the form:
#
# B = A1 * X1 + A2 * X2.
#
4 columns
12 rows
Index
Patient Height (inches)
Patient Weight (pounds)
Catheter Length (centimeters)
1 42.8 40.0 37
2 63.5 93.5 50
3 37.5 35.5 34
4 39.5 30.0 36
5 45.5 52.0 43
6 38.5 17.0 28
7 43.0 38.5 37
8 22.5 8.5 20
9 37.0 33.0 34
10 23.5 9.5 30
11 33.0 21.0 38
12 58.0 79.0 47