andrewstellman

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

andrewstellman

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

namespace Toy_Option
{

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

andrewstellman

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 ;

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

andrewstellman

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

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

namespace LogTest
{
    public class PoorMansLog : ILogger, IDisposable
    {

andrewstellman

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

andrewstellman

using System;
using System.Linq;

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

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

andrewstellman

int width = 80; // Default width
if (args != null && args.Length > 0)
{
    if (int.TryParse(args[0], out int parsedWidth) && parsedWidth > 0)
    {
        width = parsedWidth;
    }
}
int height = width / 2;
double xMin = -2.0;

andrewstellman

// Parse command line arguments for width, height, frames, and maxIterations
int width = 80; // Default width
int height = 40; // Default height
int frames = 100; // Default number of frames
int maxIterations = 100; // Default max iterations

// Check if args is not null
if (args != null)
{
    // Parse width if provided

andrewstellman

// Parse command line arguments for width, height, density, and frames
int width = args?.Length > 0 && int.TryParse(args[0], out int w) && w > 0 ? w : 70;
int height = args?.Length > 1 && int.TryParse(args[1], out int h) && h > 0 ? h : 30;
double density = args?.Length > 2 && double.TryParse(args[2], out double d) && d > 0 && d <= 1 ? d : 0.3;
int frames = args?.Length > 3 && int.TryParse(args[3], out int f) && f > 0 ? f : 500;

// Initialize the grid with random cells
bool[,] grid = new bool[height, width];
Random random = new Random();