我有一个R闪亮的代码,它可以制作各种报告、单词云、情绪分析和其他各种东西。现在,我希望通过点击一个按钮,所有这些生成的报告都可以在一次拍摄中下载并附加到ppt中。因此,例如,它应该看起来像:
幻灯片1:Word云
幻灯片2:情绪分析
幻灯片3:报告1。。。等等
到目前为止,我可以单独下载所有这些报告,即我在Shiny UI中有不同的选项卡,对于每个报告,我都会转到它并单击"下载",它会被downloadHandler下载。
此外,只需单击一下,我就可以在一个pdf中下载所有这些报告,即在一个页面中我有报告1等等。
到目前为止,我已经到达以下位置:
#downloadReport is my action button
#on click of this button I am expecting the ppt. to be downloaded
observeEvent(input$downloadReport, {
# Create a PowerPoint document
doc = pptx( )
# Slide 1 : Title slide
#+++++++++++++++++++++++
doc <- addSlide(doc, "Title Slide")
doc <- addTitle(doc,"Create a PowerPoint document from R software")
doc <- addSubtitle(doc, "R and ReporteRs package")
# Slide 2 : Add Word Cloud
#+++++++++++++++++++++++
doc <- addSlide(doc, "Title and Content")
doc <- addTitle(doc, "Bar Plot")
newData=rawInputData(); # Function which captures data (.csv file) when I have input it through R shiny
words_list = strsplit(as.character(newData$CONTENT), " ") #CONTENT is the column which contains the test data
words_per_tweet = sapply(words_list, length)
pptwordcloud<-barplot(table(words_per_tweet), border=NA,main="Distribution of words per tweet", cex.main=1,col="darkcyan")
#pptwordcloud<-barplot(table(words_per_tweet), col="darkcyan")
doc <- addPlot(doc, fun= print, x = pptwordcloud,vector.graphic =FALSE )
writeDoc(doc,'file1.pptx')
})
ppt。正在生成,但我无法通过使用vector.graphic =FALSE
作为选项在其中看到条形图。如果我删除这个,我得到这个错误
警告:观察器中出现未处理的错误:javax.xml.bind.UnmarshalException-具有链接的异常:[org.xml.sax.SAXParseException:文档中根元素前面的标记必须格式正确。]observeEvent(输入$downloadReport)
有人能指出我的错误吗。
让我们尝试重现=)
1) 我没有你的数据,所以我使用iris
,并选择用于table
选择第二列的输入
UI
library(shiny)
shinyUI(
# Use a fluid Bootstrap layout
fluidPage(
selectInput("sel",label = "col",choices = colnames(iris)[2:ncol(iris)]),
downloadButton('downloadData', 'Download')
)
)
服务器
library(shiny)
library(DT)
library(ReporteRs)
shinyServer(function(input, output,session) {
output$downloadData <- downloadHandler(
filename = "file.pptx",
content = function(file) {
doc = pptx( )
# Slide 1 : Title slide
#+++++++++++++++++++++++
doc <- addSlide(doc, "Title Slide")
doc <- addTitle(doc,"Create a PowerPoint document from R software")
doc <- addSubtitle(doc, "R and ReporteRs package")
# Slide 2 : Add Word Cloud
#+++++++++++++++++++++++
doc <- addSlide(doc, "Title and Content")
doc <- addTitle(doc, "Bar Plot")
#newData=rawInputData(); # Function which captures data (.csv file) when I have input it through R shiny
#words_list = strsplit(as.character(newData$CONTENT), " ") #CONTENT is the column which contains the test data
#words_per_tweet = sapply(words_list, length)
words_per_tweet=iris
pptwordcloud<-function(){
barplot(table(words_per_tweet[,c("Sepal.Length",input$sel)]), border=NA,main="Distribution of words per tweet", cex.main=1,col="darkcyan")
}#pptwordcloud<-barplot(table(words_per_tweet), col="darkcyan")
doc <- addPlot(doc, fun= pptwordcloud,vector.graphic =FALSE )
writeDoc(doc,file)
}
)
})