r Questions

extracting <h2> title text from html where title text might include newlines

January 8, 2024
pluke
2 Answers

I have an html file with some <h2> tags such as a <- '<section id="sec-standard-stoet-geary" class="level2" data-number="9.4"> <h2 data-number="9.4" class="anchored" data-anchor-id="sec-standard-stoet-geary"> <span class="header-section-number">9.4</span> Standardising PISA results</h2>' b <- '<span class="fu">read_parquet</span>(<span class="st">"<folder>PISA_2015_student_subset.parquet"</span>)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre> </div> </div> </section><section id="sec-leftjoin"…

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Json – Plot country shape with 50 points in R

January 4, 2024
Marco
2 Answers

I picked up a shape image for Germany from the web and transformed it to 50 points via https://spotify.github.io/coordinator/ The result is this I also get the raw data from this site and like to recreate the point-shape of Germany…

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Javascript – How to style shiny datatable cells by column quantile?

December 14, 2023
sraby
2 Answers

I am trying to style cells in a shiny datatable into six or so column-level quantiles (except the first column, which is character). Here is a MRE of my current code, which styles cells as above or below the column…

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Html – Automatic wikipedia image script

December 11, 2023
Fruuutz
2 Answers

So I made this script to automatically download the picture of a species from the general info box on Wikipedia. I have this data frame containing all the (latin) names of the species where I then want to automatically download…

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Javascript – R shiny dashboard, show conditionalPanel only when a specific tabPanel within a specific sidebar menuItem is selected

December 8, 2023
Tuo
2 Answers

Below I have provided the skeleton of a Shiny Dashboard that I am trying to create. I've fought with this for quite a while and cannot figure out how to make it work. App Current Behavior: Right now the "Select…

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Photoshop – How to ignore axis titles when arranging and tagging multiple ggplots

December 7, 2023
U. Mena
2 Answers

I would like to create a 3x4 grid of ggplots. To avoid repeating axis titles, I am only labeling the axes of some plots (see highlights in the first figure). However, my choice to label only some axes is causing…

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Mysql – How to connect MariaDB with shinny application in R studio

December 1, 2023
Ali
2 Answers

I am trying to connect Mariadb with my R shinny application in Rstudio. I created a Mariadb using docker-compose.yml and now I am trying to access the mariadb container using library(RMariaDB) library(DBI) library(RMySQL) # Connect to my-db as defined in…

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Css – Best way to change bslib value_box title text size?

November 30, 2023
AtmoSci
2 Answers

I'm putting a few a bslib value_box on my shiny page and have it working well but the font size for the title is smaller than I would like and can be hard to read. I have read through the…

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Html – using rvest to extract lat lon

November 24, 2023
89_Simple
2 Answers

I am trying to get the lat lon of all stores from here https://www.wellcome.com.hk/en/our-store On inspecting, I can see that lat and lon are contained within div library(dplyr) library(rvest) url_company <- rvest::read_html("https://www.wellcome.com.hk/en/our-store") url_company %>% html_elements("div") %>% # extracted all the…

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Ubuntu – Can't install packages in R anymore: dbus error

November 22, 2023
Simon S.
2 Answers

Suddenly, I can't install any more packages in R using install.packages. For any package I want to install (including random characters), I get the following error message: > install.packages('tensorA') Error in install.packages : dbus: Call failed: Traceback (most recent call…

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