
Accession Number : AD0704858
Title : ANALYSIS OF BIOMEDICAL DATA BY TIMESHARING COMPUTERS. I. NONLINEAR REGRESSION ANALYSIS.
Descriptive Note : Medical research interim rept.,
Corporate Author : NAVAL MEDICAL RESEARCH INST BETHESDA MD
Personal Author(s) : Horwitz,David L. ; Homer,Louis D.
Report Date : 26 FEB 1970
Pagination or Media Count : 19
Abstract : Analysis of biomedical data frequently involves obtaining a mathematical equation to describe numerical data. Because of the nature of biological systems, the desired equations are often not linear. In the past, such nonlinear systems were often avoided because mathematical methods for analyzing them were tedious and, occasionally, quite imprecise. Modern computers have made such systems far easier to work with. The publication describes a program for obtaining these nonlinear 'regression' equations. The program described has a number of advantageous properties: (1) it can be used for almost any type of equation, including exponential, logarithmic, and power functions; (2) it is written in the BASIC program language, which can be learned by a person without computer knowledge in only a few hours; (3) it is designed for timesharing computers, so that the user may readily interact with the computer and modify the equations being used at will; and (4) the output of the program includes sufficient statistical parameters to enable further evaluation of the results. In addition to giving the program, the publication gives full instructions on its use, suggestions for modifying the program for additional applications, and several illustrative examples.
Descriptors : (*BIOMETRY, REGRESSION ANALYSIS), (*REGRESSION ANALYSIS, COMPUTER PROGRAMS), NONLINEAR SYSTEMS, CURVE FITTING, ITERATIONS, TIME SHARING
Subject Categories : Biology
Statistics and Probability
Distribution Statement : APPROVED FOR PUBLIC RELEASE