[Basta-users] Individual Survival

[carlos.molineros at estudiante.uam.es]

Hi Fernando,

Thank you very much for your response. Being able to obtain the  
lifespans with its credible intervals has been very useful for me  
since it was another objective of my research. However, what I meant  
in the question is the following: Basta estimates the population  
survival probability and mortality rate curves for males and females.  
I would like to know if it is possible to estimate the curve that each  
individual has and, therefore, the survival probability of each  
individual.

Thanks,

Carlos

Fernando Colchero <colchero at imada.sdu.dk> escribió:

> Hi Carlos,
>
>    Thank you for your interest on the package. I believe that, what  
> you mean by individual survival you would like the estimated  
> lifespans and their 95% credible intervals, isn’t it?
>
>    You can extract those as follows: say that you call your BaSTA  
> output “out”. Although it is a basta object, it works as a list. The  
> estimated ages are in “out$agesQuant”, which is a 3 x ni matrix,  
> where ni is the number of individuals with unknown times of birth  
> and/or death. The columns are therefore the mean and lower and upper  
> 95% credible intervals of the estimated ages at death.
>
> Best,
>
>   Fernando
>
>
> Fernando Colchero
> Associate Professor
> Department of Mathematics and Computer Sciences (IMADA)
> and Interdisciplinary Center on Population Dynamics (CPop)
>
> Tlf.              +45 65 50 46 35
> Email           colchero at imada.sdu.dk<mailto:colchero at imada.sdu.dk>
> Web            www.sdu.dk/staff/colchero
> Pers. web     www.colchero.com
> Adr.             Campusvej 55, 5230, Odense, Dk
>
> University of Southern Denmark
>
>
>
>
> From: Basta-users <basta-users-bounces at lists.r-forge.r-project.org>  
> on behalf of carlos.molineros at estudiante.uam.es  
> <carlos.molineros at estudiante.uam.es>
> Date: Monday, 15 February 2021 at 13.11
> To: basta-users at lists.r-forge.r-project.org  
> <basta-users at lists.r-forge.r-project.org>
> Subject: [Basta-users] Individual Survival
> Hi BaSTA users,
>
> I am a master student at Autonomous University of Madrid studying the
> effects of some individual variables on the survival of a rodent
> species. I am interested in getting both population survival and
> individual survival. I used MultiBasta function and I got that the
> model that best fits my database is Weibull-Bathtub.
>
> I’m wondering if there is any function or another way to obtain the
> individual survival using BaSta from the estimated parameters. I could
> not find any information through the tutorials and code examples about
> getting individual survival.
>
> Thanks,
>
> Carlos Molinero
>
>
>
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