srktie_m: Analogue of srktie_d for settings where the distribution of...

In EQUIVNONINF: Testing for Equivalence and Noninferiority

Description

Analogue of the function srktie_d tailored for settings where the distribution of the within-subject differences is concentrated on a finite lattice. For details see Wellek S (2010) Testing statistical hypotheses of equivalence and noninferiority. Second edition, pp.112-3.

Usage

srktie_m(n,alpha,eps1,eps2,w,d) 

Arguments

n	sample size
alpha	significance level
eps1	absolute value of the left-hand limit of the hypothetical equivalence range for q_+/(1-q_0) - 1/2
eps2	right-hand limit of the hypothetical equivalence range for q_+/(1-q_0) - 1/2
w	span of the lattice in which the intraindividual differences take their values
d	row vector with the intraindividual differences for all n pairs as components

Details

Notation: q_+ and q_0 stands for the functional defined by q_+ = P[D_i+D_j>0] and q_0 = P[D_i+D_j=0], respectively, with D_i and D_j as the intraindividual differences observed in two individuals independently selected from the underlying bivariate population.

Value

n	sample size
alpha	significance level
eps1	absolute value of the left-hand limit of the hypothetical equivalence range for q_+/(1-q_0) - 1/2
eps2	right-hand limit of the hypothetical equivalence range for q_+/(1-q_0) - 1/2
w	span of the lattice in which the intraindividual differences take their values
U_pl	observed value of the U-statistics estimator of q_+
U_0	observed value of the U-statistics estimator of q_0
UAS_PL	observed value of U_+/(1-U_0)
TAUHAS	square root of the estimated asymtotic variance of √{n}U_+/(1-U_0)
CRIT	upper critical bound to √{n}|U_+/(1-U_0) - 1/2 - (\varepsilon_2-\varepsilon_1)/2|/\hat{τ}
REJ	indicator of a positive [=1] vs negative [=0] rejection decision to be taken with the data under analysis

Author(s)

Stefan Wellek <[e-mail]>
Peter Ziegler <[e-mail]>

References

Wellek S: Testing statistical hypotheses of equivalence and noninferiority. Second edition. Boca Raton: Chapman & Hall/CRC Press, 2010, pp. 112-114.

Examples

d <- c(0.8,0.2,0.0,-0.1,-0.3,0.3,-0.1,0.4,0.6,0.2,0.0,-0.2,-0.3,0.0,0.1,0.3,-0.3,
       0.1,-0.2,-0.5,0.2,-0.1,0.2,-0.1)
srktie_m(24,0.05,0.2602,0.2602,0.1,d)

EQUIVNONINF documentation built on July 12, 2021, 5:08 p.m.