fix bivariate plot for models fit with static HMC

Author: jgabry

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: shinystan
 Title: Interactive Visual and Numerical Diagnostics and Posterior Analysis for
     Bayesian Models
-Version: 2.2.1-1
+Version: 2.2.1-2
 Date: 2016-08-31
 Authors@R: c(person("Jonah", "Gabry", role = c("aut", "cre"),
     email = "[email protected]"),

NEWS.md

@@ -1,3 +1,6 @@
+### Version 2.2.1-2
+* Fix various issues resulting in errors for models fit using static HMC (thanks to @colemonnahan)
+
 ### Version 2.2.1
 * Better compatibility with latest releases of 'shinyjs' and 'DT' packages
 * `shinystan::launch_shinystan_demo()` now works without first having to load 

inst/ShinyStan/server_files/pages/explore/server/bivariate.R

@@ -38,7 +38,7 @@ bivariate_plot <- reactive({
     ".bivariate_plot",
     args = list(
       samps = SAMPS_post_warmup,
-      sp = if (!identical(SAMPLER_PARAMS_post_warmup, FALSE)) 
+      sp = if (!identical(SAMPLER_PARAMS_post_warmup, FALSE) && STAN_ALGORITHM == "NUTS")
         SAMPLER_PARAMS_post_warmup else NULL,
       max_td = if ("max_td" %in% names(MISC)) MISC$max_td else NULL,
       param = input$param,