I have this data.frame in R: dataset <- data.frame( product = c('2012', '2013', '2014', '2015', '2016', '2017'), MilkTea = c(56.5, 82.1, 88.7, 70.1, 53.4, 85.1), MatchaLatte = c(51.1, 51.4, 55.1, 53.3, 73.8, 68.7), CheeseCocoa = c(40.1, 62.2, 69.5, 36.4, 45.2,…
I have a csv file imported from a sql database, one of the column is made of JSON data. I used to be able to read_csv the file and then parse the JSON data using fromJSON. However, now when I…
I have a data table where I establish a customized search logic (with AND and OR), by translating the search string into a regex expression using the function searchStringToRegexString. The following search strings are then converted to: 'term1 AND term2'…
I'm trying to automate web scraping using RSelenium in R. I've successfully located and clicked a button on a webpage using RSelenium, but I'm having trouble extracting href attributes from the page after the button click. I actually have a…
I have recently started using a machine with Ubuntu 22.04 and I find that my existing (windows) .cpp files are no longer compiling with sourceCpp. The issue is that I require a compilation with at least C++14, and in fact…
I need a dropdown menu that would have certain groups of choices, with the first option being "Use all data". That choice makes up it's own option group, and this group doesn't need a name. Unfortunately, selectInput() doesn't allow that.…
For demonstration purposes, I have implemented an example datatable in shiny, where one can search the whole datatable (by using the search field in the top-right corner) and/or within a specific column (by using the search fields above the columns).…
I'm trying to get text from a website My code works (sort of) for (i in 1:no_urls) { this_url=urls_meetings[[i]] page=read_html(this_url) text=page |> html_elements("body") |> html_text2() text_date=text[1] date<- str_extract(text_date, "\b\w+ \d{1,2}, \d{4}\b") # Convert the abbreviated month name to its full…
I am installing packages based on a Docker file in a machine with very small storage capacities. My question is whether there is any way to install a more lightweight version of R packages that avoids non-critical bits of the…
Is there a way to include automatic incremental document versioning when working in markdown/rmarkdown/quarto? When I first render a file to pdf I want it to display version 1.0 and increment upwards from there every time the pdf is updated.…