langevitour (version 0.8.0)

langevitour-shiny: Shiny bindings for langevitour

Description

Output and render functions for using langevitour within Shiny applications and interactive Rmd documents.

Usage

langevitourOutput(outputId, width = "100%", height = "600px")
renderLangevitour(expr, env = parent.frame(), quoted = FALSE)

Arguments

outputId

output variable to read from

width, height

Must be a valid CSS unit (like '100%', '400px', 'auto') or a number, which will be coerced to a string and have 'px' appended.

expr

An expression that generates a langevitour, usually a block of code ending with a call to langevitour()

env

The environment in which to evaluate expr.

quoted

Is expr a quoted expression (with quote())? This is useful if you want to save an expression in a variable.

Examples

library(shiny)
library(palmerpenguins)

completePenguins <- na.omit(penguins[,c(1,3,4,5,6)])
scale <- apply(completePenguins[,-1], 2, sd)*4

ui <- fluidPage(
    sliderInput('zoom', 'Zoom', 0, min=-1, max=1, step=0.1),
    langevitourOutput('widget')
)

server <- function(input,output) { 
    output$widget <- renderLangevitour({
        langevitour(
            completePenguins[,-1], 
            completePenguins$species, 
            scale=scale * 10^input$zoom, pointSize=2)
    })
}

app <- shinyApp(ui, server)

# Use runApp(app) or runGadget(app) to run app.