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@harlow
harlow / golang_job_queue.md
Last active March 29, 2025 04:55
Job queues in Golang
@msoap
msoap / script.go
Last active October 8, 2022 17:23
Run Go program as script
//usr/bin/env go run $0 "$@"; exit
package main
import (
"fmt"
"os"
)
func main() {
fmt.Println("Hello world!")

Last updated: 2017-03-18

Searching for Files

Find images in a directory that don't have a DateTimeOriginal

exiftool -filename -filemodifydate -createdate -r -if '(not $datetimeoriginal) and $filetype eq "JPEG"' .

###Output photos that don't have datetimeoriginal to a CSV### Note this can take a long time if you have a lot of jpgs

@ivannp
ivannp / dvi.r
Created September 24, 2014 16:24
DVI Indicator Backtesting with SIT
require(quantmod)
require(SIT)
dvi.indicator = function(prices) {
dvi = TTR:::DVI(prices)[,3]
indicator.long = ifelse(dvi <= 0.5, 1, 0)
indicator.short = ifelse(dvi > 0.5, -1, 0)
indicator = reclass(cbind(indicator.short + indicator.long), prices)
@blixt
blixt / flask_cors.py
Created August 16, 2014 18:24
How to add CORS support to a Flask app in 9 lines of code
def add_cors_headers(response):
response.headers['Access-Control-Allow-Origin'] = '*'
if request.method == 'OPTIONS':
response.headers['Access-Control-Allow-Methods'] = 'DELETE, GET, POST, PUT'
headers = request.headers.get('Access-Control-Request-Headers')
if headers:
response.headers['Access-Control-Allow-Headers'] = headers
return response
app.after_request(add_cors_headers)
@thertrader
thertrader / ShinyForTradingStrategy.txt
Last active June 17, 2023 15:59
A Simple Shiny App for Monitoring Trading Strategies
This Shiny application is designed to help analysing trading strategies. It is an ongoing project that I improve when time allows. Feel free to get in touch should you have any suggestion.
*How to use the App as it is?
The App uses as input several csv files (one for each strategy). Each file has two columns: date and daily return. There is an example of such a file in the Github repository. The code is essentially made of 3 files.
-ui.R: controls the layout and appearance of the app
-server.R: contains the instructions needed to build the app. You can load as much strategies as you want as long as the corresponding csv file has the right format (see below).
-shinyStrategyGeneral.R: loads the required packages and launches the app
put ui.R and server.R file in a separate directory
In the server.R file change the inputPath, inputFile and keepColumns parameters to match your setting. The first two are self explanatory the third one is a list of column names within the csv file. Keep only date and daily return
@xem
xem / codegolf.md
Last active January 2, 2025 16:05
JS code golfing

codegolf JS

Mini projects by Maxime Euzière (xem), subzey, Martin Kleppe (aemkei), Mathieu Henri (p01), Litterallylara, Tommy Hodgins (innovati), Veu(beke), Anders Kaare, Keith Clark, Addy Osmani, bburky, rlauck, cmoreau, maettig, thiemowmde, ilesinge, adlq, solinca, xen_the,...

(For more info and other projects, visit http://xem.github.io)

(Official Slack room: http://jsgolf.club / join us on http://register.jsgolf.club)

@thertrader
thertrader / geneticAlgorithms
Created March 12, 2014 15:39
Using Genetic Algorithms in Quantitative Trading
############################################################
## Using Genetic Algorithms in Quantitative Trading
##
## [email protected] - Mar 2014
############################################################
library(PerformanceAnalytics)
library(rgenoud)
library(quantmod)
library(TTR)
@boazsender
boazsender / mobilecheckbox.css
Created August 30, 2012 04:34
Mobile CSS checkboxes
input[type=checkbox] {
outline: none;
width: 58px;
height: 23px;
font-size: 11px;
line-height: 2;
display: block;
font-weight: bold;
border-radius: 3px;
border: 1px solid #B9B9B9;
@brandonb927
brandonb927 / osx-for-hackers.sh
Last active April 19, 2025 05:22
OSX for Hackers: Yosemite/El Capitan Edition. This script tries not to be *too* opinionated and any major changes to your system require a prompt. You've been warned.
#!/bin/sh
###
# SOME COMMANDS WILL NOT WORK ON macOS (Sierra or newer)
# For Sierra or newer, see https://github.com/mathiasbynens/dotfiles/blob/master/.macos
###
# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/5b3c8418ed42d93af2e647dc9d122f25cc034871/.osx