Accession Number : AD0767604

Title :   An Interactive Analysis of Covariance Unit.

Descriptive Note : Technical rept.,

Corporate Author : GEORGIA UNIV ATHENS DEPT OF STATISTICS AND COMPUTER SCIENCE

Personal Author(s) : Nash,Mary E. ; Bargmann,Rolf E.

Report Date : JUL 1973

Pagination or Media Count : 169

Abstract : The report contains description and program documentations of a conversational unit for analysis of covariance of data in regular or irregular two-way classification designs. The main part of this report on the basis of detailed illustrations. It describes the question-and-answer frames on a Graphics (IBM 2250) console. The user need not be familiar with programming or with computational details of analysis of covariance. He receives instructions for description of his data from graphically displayed questions. First, an analysis of variance is performed on the response variable. Means, adjusted means, and the analysis of variance table are reported. The user may edit data or see the data plotted before continuing the analysis. After the analysis of covariance, means and adjusted means of the response residuals are reported. The error matrix, correlations matrix, partial regression coefficients, and the analysis of covariance table are displayed. Again, the user may edit data or see plots (now including a regression line or curve). He may perform a new analysis of covariance for various subsets of the concomitant variables. Listings of the FORTRAN programs are contained in the appendix. (Author)

Descriptors :   (*COMPUTER PROGRAMMING, *ANALYSIS OF VARIANCE), COMPUTER PROGRAMS, REGRESSION ANALYSIS, STATISTICAL ANALYSIS, INSTRUCTION MANUALS

Subject Categories : Statistics and Probability
      Computer Programming and Software
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE