Question

我想让用户输入一个文件（.csv），并且从该文件中，将使用.csv的列名填充两个selectizeInput。用户会询问用户上传文件中的哪些列是y变量，哪些列是x变量。这个，我能做到的。

我不能做的是以下内容：我想从y变量中选择从x变量下拉菜单中的x变量选项中消失。

此外，我已使用answer to this question尝试提供帮助，但他们没有使用fileInput中的值。因此，我无法获得下面的代码。感谢您提供任何建议/帮助。

ui<- fluidPage(

  titlePanel("Test"),

  sidebarPanel(
    fileInput(inputId = "file1", label = "Upload File"),
    selectizeInput(
      "sampleyvars", "Y-vars", choices = NULL, multiple = FALSE
    ),
    selectizeInput(
      "samplevars", "X-vars", choices = NULL, multiple = TRUE
    )

  ),

  mainPanel(h3("Nothing special")
  )
)

server<- function(input, output, session) {

  observe({
    file1 <- input$file1
    if(is.null(file1)){return()} 
    dataSet <- read.csv(file=file1$datapath)

    vals1<-input$sampleyvars
    vals2<-input$samplevars

    updateSelectizeInput(session, "sampleyvars",
                         choices =  colnames(dataSet)[! vals1 %in% vals2])
    updateSelectizeInput(session, "samplexvars",
                         choices =colnames(dataSet)[! vals2 %in% vals1])
  })

}

shinyApp(ui = ui,server = server)

Answer 1

您在domReady(function(event) { var menuButton = document.getElementById('nav-button'); var menuButtonNav = document.getElementById('nav-main'); var menuPageWrap = document.getElementById('nav-page-wrap'); var menuEls = [ menuPageWrap ]; addEvent(menuButton, 'click', function(){ var i; for ( i = 0; i <= menuEls.length; i ++ ) { menuEls[i].classList.toggle('is--open') } }) /* addEvent(menuButton, 'click', function(){ menuButtonNav.classList.toggle('is--open'); menuPageWrap.classList.toggle('is--open'); menuButton.classList.toggle('is--open'); }); */ console.log(menuEls[0]) console.log(menuEls[0].classList) });函数中使用的X变量小部件Unhandled event loop exception ObjectNotModifiableException: Attempt to modify read-only object: //WebDynpro/Controller:com.pwc.bc.registration.wd.parnr.approval.comp.PartnerNumberApprovalCompInterface! at com.sap.ide.metamodel.core.DevelopmentObjectProxy._prepareForModify(DevelopmentObjectProxy.java:465) at com.sap.ide.metamodel.webdynpro.implementation.AppClassProxy.setCodeBody(AppClassProxy.java:668) at com.sap.ide.webdynpro.componentmigration.internal.actions.DeleteInterfaceControllerImplementationCodingAction.run(DeleteInterfaceControllerImplementationCodingAction.java:23) at org.eclipse.ui.internal.cheatsheets.ActionRunner.runAction(ActionRunner.java:86) at org.eclipse.ui.internal.cheatsheets.data.Action.execute(Action.java:100) at org.eclipse.ui.internal.cheatsheets.views.CoreItem.runExecutable(CoreItem.java:497) at org.eclipse.ui.internal.cheatsheets.views.CoreItem.runExecutable(CoreItem.java:492) at org.eclipse.ui.internal.cheatsheets.views.CheatSheetViewer.runPerformExecutable(CheatSheetViewer.java:1044) at org.eclipse.ui.internal.cheatsheets.views.CoreItem$1.linkActivated(CoreItem.java:89) at org.eclipse.ui.forms.widgets.AbstractHyperlink.handleActivate(AbstractHyperlink.java:233) at org.eclipse.ui.forms.widgets.ImageHyperlink.handleActivate(ImageHyperlink.java:199) at org.eclipse.ui.forms.widgets.AbstractHyperlink.handleMouseUp(AbstractHyperlink.java:327) at org.eclipse.ui.forms.widgets.AbstractHyperlink.access$2(AbstractHyperlink.java:311) at org.eclipse.ui.forms.widgets.AbstractHyperlink$4.handleEvent(AbstractHyperlink.java:125) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3910) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3503) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514) at org.eclipse.equinox.launcher.Main.run(Main.java:1311)错误ID而不是samplevars。我将其更改为后一个ID，并稍微调整了您的代码以获得所需的效果。

完整示例：

samplexvars

来自fileInput的多个selectizeInput

1 个答案: