40.i06&gt;. Standard errors are estimated with numDeriv Gilbert (2011) &lt;https://CRAN.R-project.org/package=numDeriv&gt; or the option Hessian = TRUE of optim function.">
<meta property="og:description" content="Total Time on Test plot and routines for parameter estimation of any lifetime distribution implemented in R via maximum likelihood (ML) given a data set. It is implemented thinking on parametric survival analysis, but it feasible to use in parameter estimation of probability density or mass functi