Nothing
# validate input tests ----------------------------------------------------
pp_tests <- reactive({
validate(
need(
get_y(),
message = "Waiting for y \n"
),
need(
get_yrep(),
message = "Waiting for y_rep \n"
)
)
})
# y -------------------------------------------------------------------
get_y <- reactive({
if (!is.null(pp_y)) {
return(pp_y)
} else {
validate(need(input$y_name, message = "Waiting for y"))
y <- get(input$y_name)
validate(
need(
!isTRUE(length(dim(y)) > 1),
message = "Error: y should be a vector"
),
need(
is.numeric(y),
message = "Error: y should be a numeric vector"
)
)
return(y)
}
})
# y_rep -------------------------------------------------------------------
has_yrep_name <- reactive({
a <- input$yrep_name # name selected from model parameters / generated quantities
b <- input$yrep_name2 # name of object in global environment
validate(need(a != "" || b != "", message = "Waiting for y_rep"))
if (a != "" && b != "")
validate(need(FALSE, message = "y_rep can only be specified once"))
return(TRUE)
})
get_yrep <- reactive({
if (!is.null(pp_yrep)) {
return(pp_yrep)
} else {
validate(need(has_yrep_name(), message = "Waiting for y_rep"))
if (input$yrep_name2 != "") {
return(get(input$yrep_name2))
} else {
yreps <- grep(paste0("^", input$yrep_name, "\\["), PARAM_NAMES)
out <- SAMPS_post_warmup[, , yreps]
dd <- dim(out)
validate(need(
dd[3] == length(as.vector(get_y())),
message = "ncol(y_rep) should equal length(y)"
))
out <- array(out, dim = c(prod(dd[1:2]), dd[3]))
return(out)
}
}
})
# sample_ids_for_hist ------------------------------------------------------
nrow_yrep <- reactive({
nrow(get_yrep())
})
sample_ids_for_hist <- reactive({
go <- input$resample_hist_go
isolate(sample(nrow_yrep(), 8))
})
# sample_ids_for_dens ------------------------------------------------------
sample_ids_for_dens <- reactive({
go <- input$resample_dens_go
isolate(sample(nrow_yrep(), min(nrow_yrep(), 50)))
})
# sample_id_for_resids ------------------------------------------------------
sample_id_for_resids <- reactive({
go <- input$resample_resids_go
isolate(sample(nrow_yrep(), 1))
})
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