shiny-server

问题 I have installed shiny and shiny-server on an ubuntu server. I did a similar install on a dev server which is working. R sessions when they open up load some packages. The app runs fine locally but I'm getting messages that it can't find the packages when running on shiny-server. The error on the app During startup - Warning messages: 1: In library(package, lib.loc = lib.loc, character.only = TRUE, logical.return = TRUE, : there is no package called ‘shiny’ 2: package ‘shiny’ in options(

问题 I am building a series of interactive shiny web apps for a project that I am considering turning into a Company. My background is in data science and I don't have a lot of experience on the web app / server side of things, but these are important aspects for me to consider with my project. I currently have an Amazon Linux AMI EC2 instance with ShinyServer (free, open-source) installed, and I am currently hosting early versions of my web apps there. So far everything works fine, but I haven't

问题 I am trying to build a Rstudio/Shiny App and post it in our intranet so that everyone else in our office could see it. I am a windows guy, and the instructions online about how to setup a shiny server within Linux environment is a bit difficult for me. Is there an easy way that I can could accomplish this goal without messing up with Linux. Even if I have to do so, is there an easy way to just have my webpage available to people within our company, not everyone on the internet. Thanks! 回答1:

问题 I have an Debian VM which is not connected to internet. Yet, I can still scp any file from my local machine which does have internet connection. To provide a little bit context, I am trying to host an shiny app on the VM. I can still install an old version of R 3.1.1 with the "apt-get" command: sudo apt-get update sudo apt-get install r-base sudo apt-get install r-base-dev Yet, still can't find the "shiny" package when check the list: sudo apt-cache search "^r-.*" | sort So, I am thinking

问题 I am trying to host a Shiny app on a machine hooked up to a LAN. In the directory housing my app, I have the server.R, ui.R, and launcher.R scripts. The launcher.R file looks like: #!/usr/bin/Rscript library(shiny) setwd("~/path/to/shinyApp/") shiny::runApp(host="0.0.0.0",port=4414) When I run this via RStudio, the app launches, behaves normally, and can be accessed by other machines through the LAN by going to 987.65.43.21:4414 in a browser. When I run the app with launch.browser=T , the

问题 my question is a followup question on the following discussion: How to add/remove input fields dynamically by a button in shiny I want a be able to add/remove dynamically input with action button on shiny app, but also when I add a new input I want the values of the input fields to remain instead of change as it is now. Can you help me with this? For example if I change the first box and add another text input via the button, the value of the first box has been reset with the default one.

问题 For my system: Ubuntu 12.04 and R 3.03 , whenever I install a custom package in R via >install.packages() the package is installed by default to /home/USER/R/x86_64-pc-linus-gnu-library/3.0/ as opposed to system-wide in /usr/local/lib/R/site-library/ which is needed for shiny-server to work with that package. My temporary solution is to copy the packages to the correct folder after the fact. Question: How can I set the default install path from the start to avoid this problem? 回答1: Yes -- I

问题 I am running RStudio on a server and I created a RMarkdown (.Rmd) file. It works fine if I create it as a static HTML but it does not work if I want it to be interactive (by adding runtime:shiny ). The issue is that when I add runtime:shiny and press the Run Document button the application will try to open at 127.0.0.1:xxxx (here xxxx is a random port). In order to make it work I would have to be able to change the host parameter to '0.0.0.0'. This is an option in the runApp function from the

问题 Error Screen2 Error Screen1 while publishing app on web getting error called: check your log or contact the app auther.please find above image links ERROR: An error has occurred. Check your logs or contact the app author for clarification. if anyone can help me to resolve this error I'd be grateful. 回答1: There are multiple reasons for this error. Rstudio has provided multiple reasons (link below) but most common are: Environment variables not the same in shiny web vs. local (make sure working

问题 I dont have a reproducible example as the question is more on how modules work. I am trying to understand how to pass some reactive function from one module to the next. I have received replies in the past about using ObserveEvent but they have not seem to work when I am using the reactive value in one module to perform some other operation in another module module1 <- function(input, output, session){ data1<-reactive({ #some reacttive funcion that produces an output }) data2<-reactive({