Survival Distribution Explorer • vldaft

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Overview

This interactive vignette lets you explore the five survival distributions in vldaft on the accelerated failure time (AFT) log-time scale. You can compare families matched on the 25th and 75th percentiles, or compare multiple parameter sets within a single family. Toggle between CDF, PDF, and hazard rate.

AFT parameterization: $w = (\log t - \mu) / \sigma$ . All curves below are computed from the standardized error distribution on $w$ , then mapped to time $t$ .

Explorer

Distributions Weibull Logistic Normal Cauchy Gamma

Match quantiles t25 t75

All selected distributions match these percentiles.

Axis limits x max y max

Display CDF PDF Hazard rate

Gamma shape nu

Shape = exp(nu)

Label	mu	sigma	nu