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decus_20tap2_198111
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decus/20-0026/wtest.doc
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SUBROUTINE WTEST
PURPOSE
TEST DEGREE OF ASSOCIATION AMONG A NUMBER OF VARIABLES BY
THE KENDALL COEFFICIENT OF CONCORDANCE
USAGE
CALL WTEST(A,R,N,M,WA,W,CS,NDF,NR)
DESCRIPTION OF PARAMETERS
A - INPUT MATRIX, N BY M, OF ORIGINAL DATA
R - OUTPUT MATRIX, N BY M, OF RANKED DATA.SMALLEST VALUE
IS RANKED 1, LARGEST IS RANKED N. TIES ARE ASSIGNED
AVERAGE OF TIED RANKS
N - NUMBER OF VARIABLES
M - NUMBER OF CASES
WA - WORK AREA VECTOR OF LENGTH 2*M
W - KENDALL COEFFICIENT OF CONCORDANCE(OUTPUT)
CS - CHI-SQUARE (OUTPUT)
NDF - NUMBER OF DEGREES OF FREEDOM (OUTPUT)
NR - CODE, 0 FOR UNRANKED DATA IN A, 1 FOR RANKED DATA
IN A (INPUT)
REMARKS
CHI-SQUARE IS SET TO ZERO IF M IS 7 OR SMALLER
SUBROUTINES AND FUNCTION SUBPROGRAMS REQUIRED
RANK
TIE
METHOD
DESCRIBED IN S. SIEGEL, 'NONPARAMETRIC STATISTICS FOR THE
BEHAVIORAL SCIENCES', MCGRAW-HILL, NEW YORK, 1956,
CHAPTER 9