sBG.est: Shifted Beta Gamma Model Parameter Estimates

In jsdeherrera/shinyStats:

Description

This function estimates parameters for the shifed beta gamma distribution (often used in survival curves) and used by the survivalCurve function.

Usage

sBG.est(active.vec, lost.vec)

Arguments

active.vec	Numeric vector representing active members
lost.vec	Numeric vector representing lost members

Value

Returns a vector of parameters (alpha and beta)

Examples

## Not run: 
library(dplyr)
library(titanic)
titanic::titanic_train %>%
mutate(Deceased = ifelse(Survived == 1,0,1)) %>%
group_by(Age = round(Age,0)) %>%
summarise(Survived = sum(Survived), Deceased = sum(Deceased)) %>% {
sBG.est(
.$Survived[2:nrow(.)],
.$Deceased[2:nrow(.)]
)$par}

## End(Not run)

jsdeherrera/shinyStats documentation built on May 13, 2019, 11:54 p.m.