equivalence {equivalence}

Equivalence Tests

Description

This package provides tools to perform several equivalence tests.

Note

Recent changes: the tost.data function is deprecated as of version 0.5.0; please use tost, which provides more functionality.

Author(s)

Andrew Robinson [e-mail]

References

Schuirmann, D.L. 1981. On hypothesis testing to determine if the mean of a normal distribution is contained in a known interval. Biometrics 37 617.

Robinson, A.P., and R.E. Froese. 2004. Model validation using equivalence tests. Ecological Modelling 176, 349–358.

Wellek, S. 2003. Testing statistical hypotheses of equivalence. Chapman and Hall/CRC. 284 pp.

Westlake, W.J. 1981. Response to T.B.L. Kirkwood: bioequivalence testing - a need to rethink. Biometrics 37, 589-594.

Examples

data(ufc)

### Tost

tost(ufc$Height.m.p, ufc$Height.m, epsilon = 1)

### equivalence plot

ufc.ht <- ufc[!is.na(ufc$Height),]
equivalence.xyplot(ufc.ht$Height.m ~ ufc.ht$Height.m.p,
                   alpha=0.05, b0.ii=0.1, b1.ii=0.2,
                   xlab="Predicted height (m)",
                   ylab="Measured height (m)")