Run R-code

The code feature allows you to run R-code with access to all functions and data in Radiant. By clicking the Run code button, the code will be evaluated and the output will be shown on the right of the R > Code page. To evaluate only a part of the code use the cursor to select a section and press CTRL-enter (CMD-enter on mac).

You can load an R-code file into Radiant by clicking the Choose File button and selecting an .r or .R file. If you started Radiant from Rstudio you can save a report in HTML, Word, or PDF format by selecting the desired format from the drop-down manu and clicking Save. To save just the code choose R-code from the dropdown and press the Save button.

As an example you can copy-and-paste the code below into the editor and press Run code to generate results.

## get the active dataset and show the first few observations
.getdata() %>% head

## access a specific dataset by name
r_data[['diamonds']] %>% select(price, clarity) %>% head

## add a variable to the diamonds data
dat <- r_data[['diamonds']]
dat$log_price <- log(dat$price)

## show the first observations
dat %>% select(price, log_price) %>% head

## create a histogram of prices
dat %>% ggplot(aes(x = price)) + geom_histogram()

## and a histogram of log-prices
dat %>% ggplot(aes(x = log_price)) + geom_histogram()

## open help in the R-studio viewer from Radiant
help(package = '')

## if you are familiar with Shiny you can call reactives here
## for example, if you just transformed some variables in Data > Transform
## you can call the transform_main reacive to see the latest result
## this can very useful for debugging
# transform_main() %>% head
© Vincent Nijs (2017) Creative Commons License