Dulani’s gists

Dulani / python_logging_examples.py

Created November 18, 2017 03:19

Example logging code for Python (since I'm always having to look it up).

	#!/usr/bin/env python

	"""
	Originally taken from my pandoc filter code.
	It has good examples of logging in use.
	"""
	import logging

	LOG_FILENAME = 'my_log_name_here.log'

Dulani / xpath examples.txt

Created November 14, 2017 21:50

Some working Xpath expressions.

	Xpath

	#Starting with what you know you want an xpath expression for, pick it out and then pick its parent out.
	//*[Name="Q1"]
	//[Name="Q1"]/parent::
	//Grid[Name="Q1"]/parent::*

	#All the text attributes of the name elements of the grid nodes:
	//Grid/Name/text()

Dulani / r_ubuntu_17_10.sh

Created October 22, 2017 14:23 — forked from pachadotdev/r_ubuntu_17_10.sh

Install R on Ubuntu 17.10

	# Install R
	sudo apt-get update
	sudo apt-get install gdebi libxml2-dev libssl-dev libcurl4-openssl-dev r-base r-base-dev

	# Install RStudio
	cd Downloads
	wget https://download1.rstudio.org/rstudio-xenial-1.1.383-amd64.deb
	sudo gdebi rstudio-xenial-1.1.383-amd64.deb
	printf '\nexport QT_STYLE_OVERRIDE=gtk\n' \| sudo tee -a ~/.profile

Dulani / datatable.options.R

Created October 10, 2017 16:53

R DT datatable options

	#Adjust the size of the scrollbar and the number of items on a "page" and also setting the height of the scroll bar.

	library(tidyverse)
	library(DT)

	mtcars %>%
	DT::datatable(., style ="default", options = list("scrollY" = "400px", "pageLength"= 120))

	# An alternative style choice is style ="bootstrap"

Dulani / Rcpp.R

Created August 5, 2017 03:17

A VERY simple example using C++ in R with the cppFunction() function.

	#' Copied from Dirk Eddelbuettel's 2017 Rcpp Tutorial
	#' http://dirk.eddelbuettel.com/papers/useR2017_rcpp_tutorial.pdf

	#A very impressive little adaptation:
	cppFunction(”
	double m(int n, double x) {
	for (int i=0; i<n; i++)
	x = 1 / (1+x);
	return x;
	}”

Dulani / pandoc.css

Created July 28, 2017 20:31 — forked from killercup/pandoc.css

Add this to your Pandoc HTML documents using `--css pandoc.css` to make them look more awesome. (Tested with Markdown and LaTeX.)

	/*
	* I add this to html files generated with pandoc.
	*/

	html {
	font-size: 100%;
	overflow-y: scroll;
	-webkit-text-size-adjust: 100%;
	-ms-text-size-adjust: 100%;
	}

Dulani / pdfcrop.py

Created June 2, 2017 01:49 — forked from alexzhan/pdfcrop.py

Use pyPdf to crop a pdf file according to user inputs

	#!/usr/bin/env python

	import sys

	if __name__ == '__main__' and len(sys.argv) > 5 and sys.argv[1][-3:].upper() == 'PDF':
	original = sys.argv[1]
	target = original[:-4] + '.cropped.pdf'
	left = int(sys.argv[2])
	top = int(sys.argv[3])
	right = int(sys.argv[4])

Dulani / index.html

Created March 22, 2017 23:34 — forked from anonymous/index.html

NIJ PCJNI Delphi // source http://jsbin.com/micekex

	<!doctype html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">

	<script src="delphi-nij.js"> </script>
	<link rel="stylesheet" type="text/css" href="delphi-nij.css">

	<title>NIJ PCJNI Delphi</title>

Dulani / Desc_JSON_to_df.md

Created March 17, 2017 18:17 — forked from gluc/Desc_JSON_to_df.md

Convert a complex JSON to an R data.frame

This gist shows how to convert a nested JSON file to an R data.frame. To do this, it uses jsonlite and data.tree.

The gist contains two examples: one is a bit simpler, the second one a bit more advanced.

Example 1

In the first example, we download all the repos from Hadley Wickham's Github account from https://api.github.com/users/hadley/repos . This JSON contains a nested owner object. The code shows how to convert that in a flat data.frame in three statements:

line 5: download
line 8: convert to data.tree

Dulani / Multiply matrix columns by vector.Rmd

Last active February 15, 2017 20:34

Multiply the columns of the data frame by the elements of the vector in R

	---
	title: "Multiply the columns of the data frame by the elements of the vector"
	output: html_notebook
	---

	Matrix:
	```{r}
	(mat <- matrix(c(4:9),ncol = 2))
	```

Dulani Woods Dulani

Example 1