Description Usage Arguments Examples
Output and render functions for using sunburst within Shiny applications and interactive Rmd documents.
1 2 3 | parcoordsOutput(outputId, width = "100%", height = "400px")
renderParcoords(expr, env = parent.frame(), quoted = FALSE)
|
outputId |
output variable to read from |
width, height |
Must be a valid CSS unit (like |
expr |
An expression that generates a sunburst |
env |
The environment in which to evaluate |
quoted |
Is |
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#### filter proxy example ----
library(parcoords)
library(shiny)
ui <- tagList(
textOutput("filteredstate", container=h3),
parcoordsOutput("pc")
)
server <- function(input, output, session) {
rv <- reactiveValues(filtered = FALSE)
output$pc <- renderParcoords({
parcoords(mtcars)
})
observe({
# toggle between filtered and unfiltered every 2.5 seconds
invalidateLater(2500)
rv$filtered <- !isolate(rv$filtered)
})
observeEvent(rv$filtered, {
# create a proxy with which we will communicate between
# Shiny and the parallel coordinates without a re-render
pcp <- parcoordsProxy("pc")
if(rv$filtered) {
pcFilter(
pcp,
list(
cyl = c(6,8),
hp = list(gt = 200)
)
)
} else {
pcFilter(pcp, list())
}
})
output$filteredstate <- renderText({
paste0("Filtered: ", rv$filtered)
})
}
shinyApp(ui = ui, server = server)
### center proxy example ----
library(shiny)
library(parcoords)
ui <- tags$div(
parcoordsOutput("pc", width = 2500),
style="width: 2500px;"
)
server <- function(input, output, session) {
# create a proxy with which we will communicate between
# Shiny and the parallel coordinates without a re-render
pcp <- parcoordsProxy("pc")
output$pc <- renderParcoords({
parcoords(mtcars)
})
pcCenter(pcp, 'drat')
}
shinyApp(ui=ui, server=server)
### hide/unhide proxy example ----
library(parcoords)
library(shiny)
ui <- tagList(
selectizeInput(
inputId = "columns",
label = "Columns to Hide",
choices = c("names",colnames(mtcars)),
selected = "names",
multiple = TRUE
),
parcoordsOutput("pc"),
checkboxInput("hidenames", label="Hide Row Names", value=TRUE),
parcoordsOutput("pc2")
)
server <- function(input, output, session) {
output$pc <- renderParcoords({
parcoords(mtcars, rownames = FALSE, brushMode = "1d")
})
output$pc2 <- renderParcoords({
parcoords(mtcars, rownames = FALSE)
})
pcUnhide
observeEvent(input$columns, {
# create a proxy with which we will communicate between
# Shiny and the parallel coordinates without a re-render
pcp <- parcoordsProxy("pc")
pcHide(pcp, input$columns)
}, ignoreInit = TRUE, ignoreNULL = FALSE)
observeEvent(input$hidenames, {
# create a proxy with which we will communicate between
# Shiny and the parallel coordinates without a re-render
pcp2 <- parcoordsProxy("pc2")
if(input$hidenames) {
pcHide(pcp2, "names")
} else {
pcUnhide(pcp2, "names")
}
})
}
shinyApp(ui = ui, server = server)
### snapshot example ----
library(shiny)
library(parcoords)
ui <- tags$div(
actionButton(inputId = "snapBtn", label = "snapshot"),
parcoordsOutput("pc", height=400)
)
server <- function(input, output, session) {
# create a proxy with which we will communicate between
# Shiny and the parallel coordinates without a re-render
pcp <- parcoordsProxy("pc")
output$pc <- renderParcoords({
parcoords(mtcars)
})
observeEvent(input$snapBtn, {
# create a proxy with which we will communicate between
# Shiny and the parallel coordinates without a re-render
pcp <- parcoordsProxy("pc")
pcSnapshot(pcp)
})
}
shinyApp(ui=ui, server=server)
}
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