laasousa / data.table-joins.R

Created March 23, 2022 13:54 — forked from nacnudus/data.table-joins.R

How to do joins with data.table

	library(data.table)

	?`[.data.table`

	DT <- data.table(x=rep(c("b","a","c"),each=3), y=c(1,3,6), v=1:9)
	X <- data.table(x=c("c","b"), v=8:7, foo=c(4,2))

	colnames(DT)
	# [1] "x" "y" "v"

laasousa / youtube-dl-download-audio-only-on-best-quality.md

Created April 24, 2021 13:58 — forked from umidjons/youtube-dl-download-audio-only-on-best-quality.md

Download Audio from YouTube with youtube-dl

Download Audio from YouTube

-i - ignore errors

-c - continue

-t - use video title as file name

--extract-audio - extract audio track

laasousa / fowler.md

Created December 1, 2020 10:31 — forked from danilobatistaqueiroz/fowler.md

Notes from Martin Fowler's "Refactoring"

Refactoring, Fowler

http://martinfowler.com/books/refactoring.html

Five or six years ago I was working on an essay about refactoring CSS. I didn't do that, but I did find these notes while working on something new. Hope they're useful! —Dean

p7 "When you find you have to add a feature to a program, and the program's code is not structured in a convenient way to add the feature, first refactor the program to make it easy to add the feature, then add the feature."

p7

laasousa / gp-regression-demo.r

Created December 1, 2020 10:27 — forked from jkeirstead/gp-regression-demo.r

Demo of Gaussian process regression with R

	# Demo of Gaussian process regression with R
	# James Keirstead
	# 5 April 2012

	# Chapter 2 of Rasmussen and Williams's book `Gaussian Processes
	# for Machine Learning' provides a detailed explanation of the
	# math for Gaussian process regression. It doesn't provide
	# much in the way of code though. This Gist is a brief demo
	# of the basic elements of Gaussian process regression, as
	# described on pages 13 to 16.

laasousa / .emacs

Created June 1, 2020 15:22 — forked from benmarwick/.emacs

Notes on using Emacs

	;;Record startup timestamp
	(defvar Emacs/invokation-time
	(current-time))

	(custom-set-variables
	;; custom-set-variables was added by Custom.
	;; If you edit it by hand, you could mess it up, so be careful.
	;; Your init file should contain only one such instance.
	;; If there is more than one, they won't work right.
	'(custom-enabled-themes (quote (tango-plus)))

laasousa / emacs26.sh

Created May 26, 2020 19:03 — forked from kissge/emacs26.sh

Compile Emacs 26 on Ubuntu 16.04 on Windows Subsystem for Linux (WSL, aka Bash on Ubuntu on Windows)

	mkdir emacs
	cd emacs
	git init
	git remote add origin https://github.com/emacs-mirror/emacs.git
	git fetch --depth 1 origin emacs-26
	git reset --hard FETCH_HEAD
	sudo apt install autoconf make gcc texinfo libgtk-3-dev libxpm-dev libjpeg-dev libgif-dev libtiff5-dev libgnutls-dev libncurses5-dev
	./configure
	make
	sudo make install

laasousa / notbremse.Rmd

Created May 9, 2020 13:00 — forked from mhoehle/notbremse.Rmd

Source code for https://rpubs.com/hoehle/611621

	---
	title: "50 von 100,000 Notbremse innherhalb von 7 Tagen"
	author: "Michael Höhle ([https://www.math.su.se/~hoehle](https://www.math.su.se/~hoehle))"
	date: "`r Sys.Date()`"
	output: html_document
	---

	```{r setup, include=FALSE}
	knitr::opts_chunk$set(echo = TRUE)
	# Lade Pakete

laasousa / cl-jags.R

Created April 23, 2020 18:44 — forked from chrishanretty/cl-jags.R

Conditional logit in R + JAGS

	## Load libraries
	library(mclogit)
	library(reshape)
	library(rjags)
	library(R2WinBUGS) ## for write.model

	## Load the data file from mclogit
	data(Transport)

	## Do the mclogit model

Luís Alves de Sousa laasousa

Download Audio from YouTube

Refactoring, Fowler