In FinYang/lazytype: Functions and Addins to save keystrokes and clicks

knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>"
)

library(lazytype)

lazytype

The R package lazytype provides addins for inserting code and running code in a different manner, and functions to allow interaction between scripts and between script and rmarkdown file.

Installation

The stable version on R CRAN is coming soon.

You can install the development version from Github with:

# install.packages("devtools")
devtools::install_github("FinYang/lazytype")

Keep the PC awake

dont_sign_me_out(hours = 3.5) moves mouse every 5 minutes for a certain time (default 3.5 hours) and print the time elapsed in the console. It is mainly used on public PC where it signs you out for a certain period of inactivity.

LazyScript

LazyScript operations helps with interacting with scripts and rmarkdown files, saves time to copy and paste and provides means to arrange code in a different way.

Assume in the current working directory there is a script file named test.R with the following contents.

## ---- library ----
library(tidyverse)
## ---- hello ----
print("Hello World")

read_script("test.R", library = TRUE) reads in the code in the test.R file and executes the chunk labelled library if argument has been set to library = TRUE.

library(lazytype)
script_test <- read_script("test.R", library = TRUE)

%run% can be used to run a chunk from test.R file with a specified label.

script_test %run% "hello"

print("Hello World")

In other words, read_script provides a knitr::read_chunk equivalent in script files.

copy_script_to_rmd copies code in the script to the rmd file in the form of chunks based on the section header.

copy_script_to_rmd("test.R", "test.Rmd", match_chunk = FALSE)

In the test.Rmd file, after the existing text, the code in test.R will be appended to the end in the following form.

knitr::include_graphics("test.png")

Addins

The package provides various addins, aiming to decrease keystrokes and clicks.

Run All up to Cursor

run_all_to_cursor by its name, run the code in the current script above the cursor. I suggest binding this addin with shortcut Ctrl+Alt+R.

Run Selected Arguments

run_selected_arguments runs selected code, ignoring the comma. It normally is used to set the default arguments of a function where the arguments are separated by comma. Useful for testing function with different arguments. I suggest binding this addin with shortcut Alt+R.

Insert Purl Section

insert_purl_section insert ## ---- ---- at an empty line in the script, or turns a non-empty line to a comment with purl section header ## ---- (or turns it back). The header is recognised by knitr::read_chunk to read code for each chunk in the rmarkdown file from R script. See ?knitr::read_chunk for more details. I suggest binding this addin with shortcut Shift+Ctrl+Q.

Insert Rmarkdown Chunk (Edit Label)

insert_rmarkdown_chunk_editlabel insert Rmarkdown Chunk with cursor placed at the label. Just a shortcut to insert chunk without any code in it to use with knitr::read_chunk. I suggest binding this addin with shortcut Ctrl+Alt+O.

Insert Scoping Assignment Operator

insert_scoping_assignment insert <<- at cursor. Binding to Alt+= is suggested.

License

This package is free and open source software, licensed under GPL-3.

FinYang/lazytype documentation built on May 5, 2023, 1:39 a.m.