Sentence examples for using a weibull hazard from inspiring English sources

The clearance rate within child i was modelled using a Weibull hazard with shape parameter ρ and rate parameter μ : α i 0 t = ρ μ ρ t − t i acq ρ − 1, where t i acq is the acquisition time of the carriage episode.

Postnatal survival traits were analyzed using a Weibull proportional hazard model with the Survival Kit [21].

We also calculated the hazards for mortality using a Weibull model that included the Framingham risk score and interarm differences in SBP (at ≥5, ≥10, and ≥15 mmHg) and compared it to a model that only included the Framingham risk score.

To determine the effect of ambient temperature exposure and to examine other variables such as shipment (first vs. second), district (Kintampo North vs. South), and characteristics of the storage location, we estimated hazards ratios using a Weibull survival regression model and accounted for possible correlation within storage location using the Huber-White sandwich estimator.

Analyses were performed using a Weibull log(T) regression model.

Using a Weibull distribution the survival function can be written as (5) S t = exp − λt γ Transforming this to the log cumulative hazard scale gives (6) ln H t = ln λ + γ ln t This is now a linear function of log-time.

We used parametric survival analysis to extend the tails of the survival curve using a Weibull model (Lawless, 2003).

Thirdly, we predicted revision rates beyond five years using a Gompertz rather than a Weibull hazard function.

Our research is organized into three studies: first, we use a parametric Weibull hazard model to investigate how social media interactions affect the likelihood and timing of the upselling behavior.

The assumption of a Weibull hazard model with proportionality across covariate categories was verified using diagnostic plots of log(−log(S t)) vs log(t), where S t) is the survival function.

Table  3 depicts a Weibull hazard model of the two subsamples.