lkuper

#lang racket

;; A solver for the following puzzle:
;; Given 5 integers a, b, c, d, and e,
;; find an expression that combines a, b, c, and d with arithmetic operations (+, -, *, and /) to get e.

(require srfi/1)

(define ops '(+ - * /))

lkuper

;; This code is AWFUL and I'm sorry.

;; idea from http://stackoverflow.com/a/23718676/415518
;; This works after I added the `concat`!
(define permutations
  (lambda (ls)
    (cond
     [(null? ls) '(())]
     [(equal? (length ls) 1) `((,(car ls)))]
     [(equal? (length ls) 2)

conormm

R to python data wrangling snippets

The dplyr package in R makes data wrangling significantly easier. The beauty of dplyr is that, by design, the options available are limited. Specifically, a set of key verbs form the core of the package. Using these verbs you can solve a wide range of data problems effectively in a shorter timeframe. Whilse transitioning to Python I have greatly missed the ease with which I can think through and solve problems using dplyr in R. The purpose of this document is to demonstrate how to execute the key dplyr verbs when manipulating data using Python (with the pandas package).

dplyr is organised around six key verbs:

xavriley

define :bo do |idx|
  "Users/xriley/Dropbox/Public/sounds/barack/b#{idx}.wav"
end

use_bpm 125

live_loop :heartbeat do
  sample :bd_tek, amp: 0, cutoff: (range 60, 90).mirror.tick
  sleep 1
end

BGR360

"""
GitHub User Repository Language Analyzer
Created By: Ben Reeves
Date: January 8, 2015
Description:
This script uses the PyGithub library to access the Github API in order to perform some data analysis on a user's
repositories. Specifically, it will analyze all of the user's code and calculate the percentage of code written in
different programming languages.
"""

xavriley

#########################################
## Sonic Pi Drum Machine
## coded by Darin Wilson
## changed by Xavier Riley
##

use_bpm 95

in_thread(name: :drum_machine) do

nesquena

/*
  Source: http://www.littlerobots.nl/blog/Handle-Android-RecyclerView-Clicks/
  USAGE:
   
  ItemClickSupport.addTo(mRecyclerView).setOnItemClickListener(new ItemClickSupport.OnItemClickListener() {
      @Override
      public void onItemClicked(RecyclerView recyclerView, int position, View v) {
          // do it
      }
  });

xavriley

live_loop :foo do
  with_fx :echo, mix: 0.3 do
    sample :elec_tick if spread(2,7).tick

    pattern1 = (knit :a3, 1, :d3, 1, :g3, 1)
    pattern2 = (knit :a3, 1, :d3, 1, :g3, 1, :a0, 1)
    pattern3 = (knit :a3, 1, :d3, 1, :g3, 1, :a5, 1)

    structure = (knit pattern1, 128, pattern2, 32, pattern3, 32).tick(:structure)

ahl

use std::fs::File;
use std::path::Path;
use std::io::BufReader;
use std::io::BufRead;
use std::collections::HashMap;
use std::io::stdin;

fn sort_str(s: &String) -> String {
	let mut v: Vec<char> = s.chars().collect();
	v.sort();

dgrapov

---
title: "Hands-on with dplyr"
author: "Dmitry Grapov"
output:
  html_document:
    keep_md: yes
---

## Introduction