EVOLUTION-MANAGER
Edit File: updateSliderInput.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Update Slider Input Widget</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="R.css" /> </head><body> <table width="100%" summary="page for updateSliderInput {shiny}"><tr><td>updateSliderInput {shiny}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Update Slider Input Widget</h2> <h3>Description</h3> <p>Change the value of a slider input on the client. </p> <h3>Usage</h3> <pre> updateSliderInput( session, inputId, label = NULL, value = NULL, min = NULL, max = NULL, step = NULL, timeFormat = NULL, timezone = NULL ) </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>session</code></td> <td> <p>The <code>session</code> object passed to function given to <code>shinyServer</code>.</p> </td></tr> <tr valign="top"><td><code>inputId</code></td> <td> <p>The id of the input object.</p> </td></tr> <tr valign="top"><td><code>label</code></td> <td> <p>The label to set for the input object.</p> </td></tr> <tr valign="top"><td><code>value</code></td> <td> <p>The value to set for the input object.</p> </td></tr> <tr valign="top"><td><code>min</code></td> <td> <p>Minimum value.</p> </td></tr> <tr valign="top"><td><code>max</code></td> <td> <p>Maximum value.</p> </td></tr> <tr valign="top"><td><code>step</code></td> <td> <p>Step size.</p> </td></tr> <tr valign="top"><td><code>timeFormat</code></td> <td> <p>Date and POSIXt formatting.</p> </td></tr> <tr valign="top"><td><code>timezone</code></td> <td> <p>The timezone offset for POSIXt objects.</p> </td></tr> </table> <h3>Details</h3> <p>The input updater functions send a message to the client, telling it to change the settings of an input object. The messages are collected and sent after all the observers (including outputs) have finished running. </p> <p>The syntax of these functions is similar to the functions that created the inputs in the first place. For example, <code><a href="numericInput.html">numericInput</a>()</code> and <code>updateNumericInput()</code> take a similar set of arguments. </p> <p>Any arguments with NULL values will be ignored; they will not result in any changes to the input object on the client. </p> <p>For <code><a href="radioButtons.html">radioButtons</a>()</code>, <code><a href="checkboxGroupInput.html">checkboxGroupInput</a>()</code> and <code><a href="selectInput.html">selectInput</a>()</code>, the set of choices can be cleared by using <code>choices=character(0)</code>. Similarly, for these inputs, the selected item can be cleared by using <code>selected=character(0)</code>. </p> <h3>See Also</h3> <p><code><a href="sliderInput.html">sliderInput()</a></code> </p> <h3>Examples</h3> <pre> ## Only run this example in interactive R sessions if (interactive()) { shinyApp( ui = fluidPage( sidebarLayout( sidebarPanel( p("The first slider controls the second"), sliderInput("control", "Controller:", min=0, max=20, value=10, step=1), sliderInput("receive", "Receiver:", min=0, max=20, value=10, step=1) ), mainPanel() ) ), server = function(input, output, session) { observe({ val <- input$control # Control the value, min, max, and step. # Step size is 2 when input value is even; 1 when value is odd. updateSliderInput(session, "receive", value = val, min = floor(val/2), max = val+4, step = (val+1)%%2 + 1) }) } ) } </pre> <hr /><div style="text-align: center;">[Package <em>shiny</em> version 1.5.0 <a href="00Index.html">Index</a>]</div> </body></html>