partNsp_UI <- function(id) {
ns <- NS(id)
tagList(
selectInput(ns("partNspSel"), "Options Available:",
choices = list("None selected" = '', "Jackknife (k = n)" = "jack",
"Random k-fold" = "rand")),
uiOutput(ns('kfoldsui'))
)
}
partNsp_MOD <- function(input, output, session, rvs, occs, bgPts) {
output$kfoldsui <- renderUI({
ns <- session$ns
if (input$partNspSel == "rand") {
numericInput(ns("kfolds"), label = "Number of Folds", value = 2, min = 2)
}
})
reactive({
if (is.null(rvs$bgMsk)) {
rvs %>% writeLog(type = 'error', "Before partitioning occurrences,
mask your environmental variables by your background extent.")
return()
}
if (input$partNspSel == '') {
rvs %>% writeLog(type = 'error', "Please select a partitioning option.")
return()
}
# record for RMD
rvs$comp5 <- input$partNspSel
rvs$kfolds <- input$kfolds
occs.xy <- rvs$occs %>% dplyr::select(longitude, latitude)
if (input$partNspSel == 'jack') {
group.data <- ENMeval::get.jackknife(occs.xy, rvs$bgPts)
rvs %>% writeLog("Occurrences partitioned by jackknife method.")
} else if (input$partNspSel == 'rand') {
group.data <- ENMeval::get.randomkfold(occs.xy, rvs$bgPts, input$kfolds)
rvs %>% writeLog("Occurrences partitioned by random k-fold (k = ", input$kfolds, ").")
}
return(group.data)
})
}
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