## Only run examples in interactive R sessions
if (interactive()) {
library("shiny")
library("shinyWidgets")
ui <- fluidPage(
tags$h2("pickerInput in dropdown"),
br(),
dropdown(
tags$h3("List of Input"),
pickerInput(inputId = 'xcol2',
label = 'X Variable',
choices = names(iris),
options = list(`style` = "btn-info")),
pickerInput(inputId = 'ycol2',
label = 'Y Variable',
choices = names(iris),
selected = names(iris)[[2]],
options = list(`style` = "btn-warning")),
sliderInput(inputId = 'clusters2',
label = 'Cluster count',
value = 3,
min = 1, max = 9),
style = "unite", icon = icon("gear"),
status = "danger", width = "300px",
animate = animateOptions(
enter = animations$fading_entrances$fadeInLeftBig,
exit = animations$fading_exits$fadeOutRightBig
)
),
plotOutput(outputId = 'plot2')
)
server <- function(input, output, session) {
selectedData2 <- reactive({
iris[, c(input$xcol2, input$ycol2)]
})
clusters2 <- reactive({
kmeans(selectedData2(), input$clusters2)
})
output$plot2 <- renderPlot({
palette(c("#E41A1C", "#377EB8", "#4DAF4A",
"#984EA3", "#FF7F00", "#FFFF33",
"#A65628", "#F781BF", "#999999"))
par(mar = c(5.1, 4.1, 0, 1))
plot(selectedData2(),
col = clusters2()$cluster,
pch = 20, cex = 3)
points(clusters2()$centers, pch = 4, cex = 4, lwd = 4)
})
}
shinyApp(ui = ui, server = server)
}
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