calc_height_autocorr_plot <- reactive({
params <- input$ac_params
params <- .update_params_with_groups(params, PARAM_NAMES)
LL <- length(params)
LL <- ifelse(LL < 8, 8, LL)
round(60 * LL)
})
autocorr_plot <- reactive({
validate(
need(input$ac_lags, message = "Loading..."),
need(!is.null(input$ac_warmup), message = "Loading...")
)
samps <- if (!input$ac_warmup)
SAMPS_post_warmup else SAMPS_all
params <- .update_params_with_groups(input$ac_params, PARAM_NAMES)
if (!length(params))
params <- dimnames(samps)$parameters[1] # default to first parameter
params <- unique(params)
samps <- samps[, , params, drop = FALSE]
do.call(
".autocorr_plot",
args = list(
samps = samps,
lags = input$ac_lags,
flip = input$ac_flip,
combine_chains = input$ac_combine,
partial = input$ac_partial
)
)
})
output$autocorr_plot_out <- renderPlot({
autocorr_plot()
}, bg = "transparent")
# download the plot
output$download_autocorr <- downloadHandler(
filename = paste0('shinystan-autocorr-gg.RData'),
content = function(file) {
shinystan_autocorr_gg <- autocorr_plot()
save(shinystan_autocorr_gg, file = file)
})
output$save_pdf_autocorr = downloadHandler(
filename = "shinstan-autocorr.pdf",
content = function(file) {
ggsave(file, plot = autocorr_plot(), device = pdf)
})
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