如何在使用带有Shiny运行时的Slidy时使textOutput正常工作

2023年3月25日 286次阅读

以下代码在本地具有令人满意的结果但是当上传到shinyapps.io时不起作用.

---
title: "shiny slidy app"
author: "IMI"
date: "11/29/2018"
output:
  slidy_presentation:
    self_contained: yes
runtime: shiny
---

```{r data, echo=FALSE, message=FALSE, warning=FALSE, paged.print=FALSE}
library(shiny)
data<- data.frame(Year= 1990:1999)
```


## First

```{r slideselect, echo=T, message=FALSE, warning=FALSE, paged.print=FALSE}
sliderInput("year", "Year",
    min = min(data$Year), max = max(data$Year),
    value = c(min(data$Year),max(data$Year)))       

```

```{r print, echo=T}
year<-reactive(input$year)
output$rendtext<-renderText( year()[1]:year()[2])
textOutput("rendtext")
```

shinyapps.io：

本地：

有什么建议吗？

最佳答案我只是尝试了你的代码并且效果很好：

我在Rstudio中做了以下步骤：

1)创建一个新的Rmd文件

---
title: "shiny slidy app"
author: "IMI"
date: "11/29/2018"
output:
  html_document:
    df_print: paged
  slidy_presentation:
    self_contained: yes
runtime: shiny
---

```{r data, echo=FALSE, message=FALSE, warning=FALSE, paged.print=FALSE}
library(shiny)
data<- data.frame(Year= 1990:1999)
```


## First

```{r slideselect, echo=T, message=FALSE, warning=FALSE, paged.print=FALSE}
sliderInput("year", "Year",
    min = min(data$Year), max = max(data$Year),
    value = c(min(data$Year),max(data$Year)))       

```

```{r print, echo=T}
year<-reactive(input$year)
output$rendtext<-renderText( year()[1]:year()[2])
textOutput("rendtext")
```

2)通过专用按钮在shinyapp.io上发布

此外,我尝试了一个基本的闪亮部署(看了shiny guidelines),这也没关系：它运行本地和shinyapp.io.

# Global variables can go here
library(shiny)
data <- data.frame(Year= 1990:1999)

# Define the UI
ui <- bootstrapPage(

  # Input: Simple integer interval ----
  sliderInput("year", "Year", min = min(data$Year), max = max(data$Year), value = c(min(data$Year),max(data$Year))),

  # Output: Text output summarizing the values ----
  textOutput("rendtext")

)


# Define the server code
server <- function(input, output) {

  # Reactive expression for the input values ---
  year <- reactive(input$year)  

  # Show the values ----
  output$rendtext<-renderText( year()[1]:year()[2])


}

# Return a Shiny app object
shinyApp(ui = ui, server = server)