Andrew Stellman andrewstellman

Convert MOV to GIF using FFmpeg and ImageMagick

I tried a few different techniques to make a GIF via command-line and the following gives me the best control of quality and size. Once you're all setup, you'll be pumping out GIFs in no time!

Preparation

Install FFmpeg

$ brew install ffmpeg [all your options]
- Example: $ brew install ffmpeg --with-fdk-aac --with-ffplay --with-freetype --with-frei0r --with-libass --with-libvo-aacenc --with-libvorbis --with-libvpx --with-opencore-amr --with-openjpeg --with-opus --with-rtmpdump --with-schroedinger --with-speex --with-theora --with-tools

Install ImageMagick

Quick RDF example

Quick example of RDF that shows structured data. Example of triples using this ontology:

  :WallyWorld a :Company ;
    rdfs:label "Wally World Amusements" .

  :Bill a :Employee ;
 :employedBy :WallyWorld ;

Analysis: 3-point shot percentage after other team makes or misses

This analysis shows how pbprdf was used to analyze NBA players' 3-point shot percentage after a player on the other team either made or missed a shot over the 2017-2018 regular season.

Overview

We're interested in finding 3-point shots that were made immediately after a 3-point shot taken by the other team. The way we do this is by running a SPARQL query that calculates each player's season 3-point shot percentage, the 3P% after a player on the other team misses, and the 3P% after a player on the other team makes. We want to calculate the percentage of 3-point shots that they make or miss when we include only shots that they took immediately after a player on the other team took a 3-pointer (within two lines on the play-by-play).

Here's the data that we're using to do this analysis. Each play has a set of triples that inc

	using System;
	using System.Linq;

	namespace WeightByTime
	{
	record Tweet(long id, long time);

	static class UnixTime
	{
	public static long EpochTime(this DateTime dateTime) =>

	Serves 4-6

	3/4 lb. (350g) good-quality penne (the cooking time of my penne lists an 8-9 minute cooking time)
	2 or 3 shallots, finely sliced, or half of a small yellow onion, finely diced
	2-4 slices of pancetta, chopped
	1 bunch asparagus
	1/4 lb. (115g) Feta cheese
	Zest of one lemon
	4 cups (960ml) Chicken stock
	Kosher salt and freshly-ground pepper

	// https://twitter.com/AndrewStellman/status/1332042223987388420

	using System;
	using System.Collections.Generic;
	using Microsoft.Extensions.Logging;

	namespace LogTest
	{
	public class PoorMansLog : ILogger, IDisposable
	{

	using System;
	using System.Collections;
	using System.Collections.Generic;
	using System.Linq;

	namespace Toy_Option
	{

	public abstract class Option<T> : IEnumerable<T>
	{