Category: R

How can I copy and paste data into R? For example, you see a small data set on the web, perhaps in a blog or here on StackOverflow, and you want that data set in your R session. This is a common task for many of us, and there are several ways to go about. Below I present a solution based on this blog post that I have found useful.

First, copy (e.g. “⌘ + C”) the data set.

Then, paste (e.g. “⌘ + V”) to create an R character vector:
x <- " A B C D
1: 2 2 5 3
2: 2 1 2 3
3: 3 4 4 3"

Next, use the read.table() function:
y <- read.table(text = x, header = TRUE)

Done! The data is now in a data frame:
class(y)
[1] "data.frame"

A Shiny module is a piece of code that is included as part of a larger Shiny app. I wrote this small Shiny app as I could not find a really simple example elsewhere. It is based on the “Hello Shiny” example that comes with the Shiny package. You can run it with:

library(shiny)
runExample("01_hello")

Hello Shiny is a simple application that uses the sidebarLayout, with a sliderInput in the sidebarPanel and a histogram displayed in the mainPanel. My Shiny app modularizes the sidebarPanel part of the sidebarLayout.

You can see it in action here: https://xplor.shinyapps.io/module_example_1

The code is available here: https://github.com/samuel-bohman/module_example_1

Comment below if this was helpful to you.

Cheers!

Update!

Added a second version of modularized “Hello Shiny” that uses renderUI in the module that switches between two sliderInput functions.

You can see it in action here: https://xplor.shinyapps.io/module_example_2/

The code is available here: https://github.com/samuel-bohman/module_example_2