ALTopt: Optimal Experimental Designs for Accelerated Life Testing

Creates the optimal (D, U and I) designs for the accelerated life testing with right censoring or interval censoring. It uses generalized linear model (GLM) approach to derive the asymptotic variance-covariance matrix of regression coefficients. The failure time distribution is assumed to follow Weibull distribution with a known shape parameter and log-linear link functions are used to model the relationship between failure time parameters and stress variables. The acceleration model may have multiple stress factors, although most ALTs involve only two or less stress factors. ALTopt package also provides several plotting functions including contour plot, Fraction of Use Space (FUS) plot and Variance Dispersion graphs of Use Space (VDUS) plot.

Install the latest version of this package by entering the following in R:
AuthorKangwon Seo [aut, cre], Rong Pan [aut]
Date of publication2015-08-28 01:33:02
MaintainerKangwon Seo <>

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alteval.ic Man page
alteval.rc Man page
altopt.ic Man page
ALTopt-package Man page
altopt.rc Man page
compare.fus Man page
compare.vdus Man page
convert.stress.level Man page
design.plot Man page
Dobj.ic Man page
Dobj.rc Man page
ExtendedForm Man page
Iobj.ic Man page
Iobj.rc Man page
kmeansCls Man page
PreVar Man page
pv.contour.ic Man page
pv.contour.rc Man page
pv.fus.ic Man page
pv.fus.rc Man page
pv.vdus.ic Man page
pv.vdus.rc Man page
Uobj.ic Man page
Uobj.rc Man page

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