alekrutkowski’s gists

alekrutkowski / data.table_setnames_extensions.R

Created September 6, 2024 08:23

R functions – convenient extensions of data.table's `setnames` function

	library(magrittr)
	library(data.table)

	setnamesWithArrows <- function(dt, ...) {
	pairs <-
	substitute(list(...)) %>%
	as.list %>%
	tail(-1) %>%
	lapply(. %>% as.list %>% tail(-1) %>% rev)
	from <-

alekrutkowski / namedList.R

Last active August 28, 2024 08:09

R function to avoid the repetitions in situations like `list(first = first, second = second, third = third)`

	namedList <- function(...) {
	# Capture the variable names as symbols
	# and convert symbols to character names
	var_names <- as.character(as.list(substitute(list(...)))[-1])
	# Create a named list
	stats::setNames(mget(var_names, envir = parent.frame()), var_names)
	}

	### Usage example

alekrutkowski / webR.download.file.R

Created May 6, 2024 07:18

`download.file` function compatible with webR (CORS)

	webR.download.file <- function(url, destfile)
	download.file(paste0("https://corsproxy.io/?",URLencode(url)),
	destfile)

	# See https://github.com/r-wasm/webr/issues/252#issuecomment-1690142510

alekrutkowski / infix_operators.R

Last active October 30, 2024 18:04

Frequently used R infix operators

alekrutkowski / insheet_eurostat.ado

Last active June 18, 2025 14:19

Stata command to download and import a Eurostat dataset

	// Usage example:
	// Either the parameter is Eurostat's "online data code":
	// insheet_eurostat nama_10_gdp
	// or the parameter is the custom URL generated with Eurostat GUI top right corner:
	// Go to e.g. https://ec.europa.eu/eurostat/databrowser/view/nama_10_gdp/default/table?lang=en and
	// do your selections by clicking
	// ⤓ Download > Advanced settings > Select: File format = "Text (.tsv)", Select: Data scope = "All selected dimensions", and untick "Compress file (.gzip)" > Click: [Copy] button next to the "API link"
	// insheet_eurostat https://ec.europa.eu/eurostat/api/dissemination/sdmx/2.1/data/nama_10_gdp/A.CP_MEUR.B1G+P3.EU27_2020+BE+BG+CZ+DK/?format=TSV&startPeriod=2021&endPeriod=2023
	// To use it like other commands, put it in your "personal" folder/directory
	// (see: https://www.stata.com/support/faqs/programming/personal-ado-directory/ and https://www.stata.com/help.cgi?personal).

alekrutkowski / index.html

Last active April 23, 2024 09:12

Keyboard Shortcut Cheatsheet Maker (made entirely with ChatGPT 4), hosted at https://shiny-r.dev/cheatsheet-maker/

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Keyboard Shortcut Cheatsheet Generator</title>
	<link rel="stylesheet" href="styles.css">
	</head>
	<body>
	<div class="container">

alekrutkowski / app.R

Last active May 17, 2024 09:30

JAF2R_SpecGen – JAF specification generator for indicators based on Eurostat data for JAF2R (https://github.com/alekrutkowski/JAF2R)

	options(shiny.sanitize.errors = FALSE)


	library(shiny)
	library(data.table)
	library(eurodata)
	library(magrittr)

	MetaBase <-
	importMetabase() %>%

alekrutkowski / listWithoutEmptyArgs.R

Last active March 13, 2024 13:59

R function for dealing with (ignoring) missing/empty arguments inside ellipsis (...)

	listWithoutEmptyArgs <- function(...)
	eval(Filter(\(x) !identical(as.character(x), "") \|\| identical(x,""),
	bquote(.(substitute(list(...))))))

	# > list(a=1,,b=2:10)
	# Error in list(a = 1, , b = 2:10) : argument 2 is empty

	# > listWithoutEmptyArgs(a=1,,b=2:10)
	# list(a = 1, b = 2:10)

alekrutkowski / memory_address.R

Last active February 22, 2024 16:22

Get memory address of an R object

	memoryAddress <- function(x)
	strsplit(capture.output(.Internal(inspect(x))),split=" ")[[1]][1]

	### Usage examples

	# > abc <- c(1,2,3,10,11)
	# > xyz <- abc
	# > memoryAddress(abc)==memoryAddress(xyz)
	# [1] TRUE
	# > xyz <- abc+1

alekrutkowski / rename_all_jpeg_files_in_folder_to_fujifilm_instax_format.py

Created February 17, 2024 18:42

	import os
	import random
	import string

	while True:
	folder_path = input("Please enter the folder path: ")

	# Check if the path is a valid directory
	if os.path.isdir(folder_path):
	print(f"Valid directory: {folder_path}")

alek alekrutkowski