TTT-SiZer: A graphic tool for aging trends recognition

Gámiz, Maria Luz, Nozal-Cañadas, Rafael and Raya-Miranda, Rocío

Reliability Engineering and System Safety, 2020, vol. 202, issue C

Abstract: A new graphic tool is presented to test aging trends based on lifetime data. The graphical test is developed by means of scale and space inference about the Total-Time-on-Test transform and its first and second derivatives. The graphic tool TTT-SiZer is defined considering nonparametric local polynomial kernel estimators and constructing the corresponding (simultaneous as well as punctual) confidence intervals around three different curves. The finite sample properties of the method are evaluated by a simulation study and the comparison with other non-graphical tests shows that the graphical test helps localize discrepancies of empirical data concerning a given hypothesized aging property, thus allowing to solve the problem locally.

Keywords: Total-time-on-test transform; Kernel smoothing; Order statistics; SiZer map (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:202:y:2020:i:c:s0951832020305111

DOI: 10.1016/j.ress.2020.107010

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