phobson

\documentclass{minimal}
\usepackage{siunitx}
\usepackage[sc]{mathpazo}
\linespread{1.05}         % Palatino needs more leading (space between lines)
\usepackage[T1]{fontenc}
\begin{document}
who wins?
\si{\micro\gram\per\liter}  vs. $\mu$g/L
\end{document}

dsparks

# Let's say you have an R object that you'd like to share with someone else
# but, for whatever reason, it is necessary to share it in text form.

# Generate a random data.frame
set.seed(1337)
NN <- 10
theData <- data.frame(Alpha = rnorm(NN),
                      Beta = rnorm(NN))
theData$Gamma <- theData$Alpha * 2 + theData$Beta / 2 + rnorm(NN)
print(theData)

dsparks

doInstall <- TRUE
toInstall <- c("zoo")
if(doInstall){install.packages(toInstall, repos = "http://cran.us.r-project.org")}
lapply(toInstall, library, character.only = TRUE)

ftseIndex <- EuStockMarkets[, 4]
plot(ftseIndex, col = "GRAY")

# Calculate 10-day rolling mean, quickly:
smoothIndex <- rollmean(x = ftseIndex,  # original series

trestletech

library(shiny)
library(dplyr)
library(lubridate)

# Load libraries and functions needed to create SQLite databases.
library(RSQLite)
library(RSQLite.extfuns)
saveSQLite <- function(data, name){
  path <- dplyr:::db_location(filename=paste0(name, ".sqlite"))

pimentel

catDf <- data.frame(meow = rnorm(100), purr = rpois(100, 3))
aList <- list(aVector = 1:20, aDf = catDf, anotherList = list(1:200, 1:20))

# annoying as hell, right?
head(aList)

#' Return the first or last part of a list
#'
#' Returns the first or last part of a list. Instead of returning the first
#' n entries as the standard head() does, it attempts to call head()

clhenrick

PostgreSQL & PostGIS Cheatsheet

This is a collection of information on PostgreSQL and PostGIS for what I tend to use most often.

TOC

• Installing Postgres & PostGIS
• Using Postgres on the command line: PSQL
• Importing Data into Postgres
• Exporting Data from Postgres
• Joining Tables

kbroman

# convert c("female", "Male") to c(0,1)

# magrittr is way nicer than nested function calls

convert_sexcodes <-
function(codes)
{
    require(magrittr)

    tolower(codes) %>%

jradavenport

# Resulting video from this code can be seen here:
#   http://www.ifweassume.com/2015/02/world-population-density.html
# or
#   https://vimeo.com/120308257

import numpy as np
import matplotlib.pyplot as plt
from mpl_toolkits.basemap import Basemap
import os

atcuno

The purpose of this document is to make recommendations on how to browse in a privacy and security conscious manner. This information is compiled from a number of sources, which are referenced throughout the document, as well as my own experiences with the described technologies.

I welcome contributions and comments on the information contained. Please see the How to Contribute section for information on contributing your own knowledge.

Table of Contents

• Motivation
• Audience
• TL;DR?
• Updates
• Technologies that Affect Security and Privacy

haasn

Firefox bullshit removal

Updated: Just use qutebrowser (and disable javascript). The web is done for.