R

Updated: 2023-05-24 A simple guide to use CI/CD and Code coverage. For CI tasks will be done using GitHub Actions. Some examples of yaml files for CI tasks can be found here eg. check-standard.yaml file. CI/CD This is a simple process to implement CI/CD using GitHub Actions with usethis package.

First publish date: 02.09.2019 Ini ialah beberapa penggunaan asas R yang amat berguna walaupun jarang dipakai. Antaranya: Pasang pakej Cara biasa untuk pasang pakej ialah menggunakan install.packages(). Tetapi sekiranya ingin memasang banyak pekej secara serentank dan memuatkan di R setelah pakej dipasang, cara begini boleh dipakai:

Updated: 2021-09-17 Some tips for data.table that I came across while googling which might be useful. Print To print more rows that default can be done with either: options(datatable.print.topn = 70) print(DT, topn = 70) Using options will implement the changes globally.

Updated: 2022-10-09 Just to remind me how I could use ellipsis or the three dots ... in my coding. There are three scenarios I find it useful: Function wrapper When creating a function wrapper and instead of providing all the arguments to be send further, you could just use .

It’s often easier to use ifelse to implement conditioning. The fast implementation in data.table of ifelse is fifelse. Other approach to do multiple conditioning is to use data.table::fcase or dplyr::case_when. fcase fcase can be used directly x <- 1:6 data.table::fcase(x < 3, 1, x >= 4, 2) To implement in a data.