我认为最简单的方法是使用报告模板并将输入作为参数传递。
因此，您在与 Shiny 报告相同的目录中创建一个文件名为“sampleRmdReport.Rmd”的新报告，其内容如下：
---
title: "Weekly Report"
author: "Moody_Mudskipper"
date: '`r format(Sys.Date(),"%Y-%B-%d")`'
output: html_document
params:
mondayText: "holder"
tuesdayText: "holder"
x: "holder"
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = FALSE, results = "asis")
```
# Monday
```{r}
cat(params$mondayText)
```
```{r}
plot(log(1:params$x))
```
# Tuesday
```{r}
cat(params$tuesdayText)
```
```{r}
plot(sin(1:params$x))
```
然后，将以下内容添加到您的闪亮报告中：
Download the weekly report:
```{r}
downloadHandler(
filename = function(){
paste0("weeklyReport_generated_"
, format(Sys.Date(), "%Y%b%d")
, ".html")
}
, content = function(file){
rmarkdown::render(input = "sampleRmdReport.Rmd"
, output_file = file
, params = list(mondayText = input$mon
, tuesdayText = input$tue
, x = input$x
))
}
, contentType = "text/html"
)
```
制作完整文件：
---
title: "WEEKLY REPORT"
runtime: shiny
output: html_document
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = F)
```
```{r header}
selectInput("x", label = "x",choices = 1:10,width="100%")
```
Download the weekly report:
```{r}
downloadHandler(
filename = function(){
paste0("weeklyReport_generated_"
, format(Sys.Date(), "%Y%b%d")
, ".html")
}
, content = function(file){
rmarkdown::render(input = "sampleRmdReport.Rmd"
, output_file = file
, params = list(mondayText = input$mon
, tuesdayText = input$tue
, x = input$x
))
}
, contentType = "text/html"
)
```
## Monday
```{r monday}
textAreaInput("mon", label = NULL)
renderPlot({
plot(log(1:input$x))
})
```
## Tuesday
```{r tuesday}
textAreaInput("tue", label = NULL)
renderPlot({
plot(sin(1:input$x))
})
```
然后，单击“下载”按钮将生成报告并提示用户下载。请注意，如果您在 RStudio 中进行测试，则文件名将不起作用。我建议在浏览器中打开它进行测试。
然后，如果您希望能够生成单独的每日报告，只需为您想要的报告添加一个模板，并为每个报告添加一个下载按钮。或者，您可以让您的downloadHandler 生成每天的报告（从模板中）并将它们放在一个压缩目录中以便一起下载。
（注意：我倾向于发现这在 Shiny App 中比在降价文档中更灵活，特别是因为它允许更多地控制下载按钮。根据您的用例，可能值得考虑将其作为一种方法.)
基于 cmets，这是一个可以上传到 Imgur 并以这种方式插入图像的版本。用这个替换另一个模板或添加第二个按钮。请注意，我没有让 imgur 上传功能工作，因为我没有 API 密钥（我假设你有，因为你打算这样做）。
---
title: "Weekly Report"
author: "Moody_Mudskipper"
date: '`r format(Sys.Date(),"%Y-%B-%d")`'
output:
html_document:
self_contained: false
params:
mondayText: "holder"
tuesdayText: "holder"
x: 1
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = FALSE, results = "asis")
library(ggplot2)
tempDir <- tempdir()
uploadImgur <- function(fileName){
# This function would need to upload with the Imgur API
# I don't have a key, and don't want to set one up
# for this example.
# It would return the url that imgur assigns the image
# here, I am using a placeholder
outUrl <- "https://i.imgur.com/WsUV4DK.gif"
return(outUrl)
}
```
# Monday
```{r}
cat(params$mondayText)
```
```{r}
tempPlot <-
ggplot(mapping = aes(x = 1:params$x
, y = log(1:params$x))) +
geom_point() +
xlab("X") +
ylab("Y")
tempFile <- tempfile("plot_", tempDir, ".png")
ggsave(tempFile, tempPlot, width = 4, height = 4)
imgurURL <- uploadImgur(tempFile)
cat("![](", imgurURL,")", sep = "")
```
# Tuesday
```{r}
cat(params$tuesdayText)
```
```{r}
tempPlot <-
ggplot(mapping = aes(x = sin(1:params$x)
, y = log(1:params$x))) +
geom_point() +
xlab("X") +
ylab("Y")
tempFile <- tempfile("plot_", tempDir, ".png")
ggsave(tempFile, tempPlot, width = 4, height = 4)
imgurURL <- uploadImgur(tempFile)
cat("![](", imgurURL,")", sep = "")
```