Forcing regression through a given point using any familiar computational routine

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U.S. Army Corps of Engineers, Coastal Engineering Research Center, 1983 - Mathematics - 20 pages
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This report describes a simple method for obtaining the prediction equation best fit to all data points (in the least squares sense) while forcing an exact fit at any known point. The decision to constrain the solution at a point should be justified on theoretical grounds without appeal to data. Examples are given. When required any familiar regression program can be forced to select the best line through a given point by simply adjusting and extending the data entry. All necessary changes to the program results (test statistics and estimates of regression parameters) can be accomplished without modifying the computer program. (Author).

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Contents

CONVERSION FACTORS U S CUSTOMARY TO METRIC SI
5
A PROBLEM WITH THE CUSTOMARY APPROACH
11
Real test data for example problem 1
17

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