From: Andrew Scotchmer <andrew.scotchmer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: pandoc-discuss <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Subject: Pandoc Error with Rmarkdown and Shiny
Date: Fri, 25 Aug 2017 01:24:04 -0700 (PDT) [thread overview]
Message-ID: <1c67925b-ebef-4e18-ba6d-477292e07160@googlegroups.com> (raw)
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Hi
I have a simple R shiny app. Whenever I try and download the table I
created I get the following error:
pandoc: Cannot decode byte '\xfe':
Data.Text.Internal.Encoding.Fusion.streamUtf8: Invalid UTF-8 stream
Warning: Error in : pandoc document conversion failed with error 1 Stack
trace (innermost first):
53: pandoc_convert
52: convert
51: rmarkdown::render
50: download$func [/home/scotcan1/Webshot/app.R#50]
1: shiny::runApp
Error : pandoc document conversion failed with error 1
I don't know what this means. Here is my R/Shiny script and Rmarkdown.
*R:*
library(shiny)
library(DT)
data(iris)
ui <- fluidPage(
titlePanel("|Species Table"),
sidebarLayout(
sidebarPanel(
selectInput("specs",
"Number of bins:",
unique(iris$Species)),
downloadButton("download", "Download Report")
),
mainPanel(
tableOutput("specTable")
)
)
)
server <- function(input, output) {
subSpec <- function(x){
testdat <- iris[iris$Species == x, ]
return(testdat[1:10,])
}
reactiveFunction <- reactive({ subSpec(input$specs) })
output$reactiveTable <- renderDataTable({ reactiveFunction() }, rownames =
FALSE)
output$specTable <- renderUI({
dataTableOutput("reactiveTable")
})
output$download <- downloadHandler(
filename <- "report_file.html",
content <- function(file){
write.csv(reactiveFunction(), "test_csv.csv", row.names = FALSE)
params <- list(data = reactiveFunction())
rmarkdown::render(filename, output_file = file)
}
)
}
shinyApp(ui = ui, server = server)
*Rmarkdown:*
---
title: "Untitled"
output: html_document
params:
data: NA
---
```{r, echo=FALSE}
data(iris)
library(DT)
datatable(params$data)
```
Any help to interpret the error appreciated.
Andrew
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next reply other threads:[~2017-08-25 8:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-25 8:24 Andrew Scotchmer [this message]
[not found] ` <1c67925b-ebef-4e18-ba6d-477292e07160-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
2017-08-25 14:15 ` John MacFarlane
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