Very small bug in vignette code

Summary:

In the "How to use the rstanarm package" vignette, there is a line that calls shinystan. This code throws an error.

Description:

The error is as follows:

Error in validate_y(y) : NAs not allowed in 'y'.

The reason this occurs is because there is a row in the dataset that has both agree and disagree equal to 0. The model fits fine, but the shinystan code throws the error. If you remove this line from the dataset before fitting the model, there is no error. You likely want to fix this within shinystan, but since it's an rstanarm vignette I was running, I'm posting it here.

Reproducible Steps:

data("womensrole", package = "HSAUR3")
womensrole$total <- womensrole$agree + womensrole$disagree
library(rstanarm)
CORES <- 4
SEED <- 12345
CHAINS <- 4
womensrole_bglm_1 <- stan_glm(cbind(agree, disagree) ~ education + gender,
                              data = womensrole,
                              family = binomial(link = "logit"), 
                              prior = student_t(df = 7), 
                              prior_intercept = student_t(df = 7),
                              chains = CHAINS, cores = CORES, seed = SEED)

library(shinystan)
launch_shinystan(womensrole_bglm_1)

RStanARM Version:

2.15.3 (shinystan version 2.3.0)

R Version:

3.4.0

Operating System:

Windows 10

Reproduce the failure using the provided womensrole data, stan_glm call, and launch_shinystan(womensrole_bglm_1) entry point. Inspect the “How to use the rstanarm package” vignette and determine whether the failing behavior belongs to the vignette or shinystan; done means the reported vignette workflow no longer errors or the issue is clearly redirected upstream.