hamx0r’s gists

hamx0r / memcache_source.py

Last active February 4, 2018 19:40

Zipline Data Source which pulls from Memecache

	""" MemcacheDataSource Class to pull data from memcache on demand for a simulation, minimizing data load time for a
	simulation, and allowing Memcached stock data to be shared by multiple parallel simulations.

	The MemCacheData class implements methods to act in compliance with the `zipline.algorithm.TradingAlgorithm.sources`
	object: https://github.com/quantopian/zipline/blob/0.9.0/zipline/algorithm.py

	This means implementing the following methods (with line numbers per v0.9.0 linked above):
	* `sids` (Line 562)
	* iterator (or generator) methods (439) like:
	- '__iter__'

hamx0r / welford.py

Last active March 12, 2018 06:53 — forked from alexalemi/welford.py

Python Welford Algorithm

	import math
	class Welford(object):
	""" Implements Welford's algorithm for computing a running mean
	and standard deviation as described at:
	http://www.johndcook.com/standard_deviation.html

	can take single values or iterables

	Properties:
	mean - returns the mean

hamx0r / gist:b851531d8546565c23deab926ee6867e

Created February 12, 2018 16:48 — forked from mhawksey/gist:1276293

Google App Script to insert data to a google spreadsheet via POST or GET - updated version as per https://mashe.hawksey.info/2014/07/google-sheets-as-a-database-insert-with-apps-script-using-postget-methods-with-ajax-example/

	/*
	Copyright 2011 Martin Hawksey

	Licensed under the Apache License, Version 2.0 (the "License");
	you may not use this file except in compliance with the License.
	You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software

hamx0r / simple_python_datasource.py

Last active December 17, 2018 23:26 — forked from linar-jether/simple_python_datasource.py

Grafana python 3 datasource - using pandas for timeseries and table data. inspired by and compatible with the simple json datasource

	"""
	Uses `flask_restful` and creates a Blueprint to be used by a parent project (ie a larger API project where
	`/grafana/` endpoints are used by Grafana's SimpleJson plugin)
	"""

	from flask import Flask, request, jsonify, json, abort, Blueprint
	from flask_cors import CORS, cross_origin
	import flask_restful
	import pandas as pd

hamx0r / Reuleauxs_labyrinth.py

Last active August 26, 2024 02:25

Triangular labyrinth calculator

	"""
	Given a labyrinth bounded in Reuleaux's Triangle (or any triangle), let each V be any of the 3 vertices
	and C be any of the 7 circuits. There are 3*7=21 segments in this labyrinth, and a path through it can be described
	by going from one point (v_i, c_j) to some other point (v_k, c_l) where the following rules apply:

	1. From a given starting point, one can either
	a. traverse along the same circuit but different vertice (ie j = l), or
	b. switch back along a neighboring circuit (ie l = c +/- 1)
	2. Each segment can be traversed only once, implying points can be arrived at more than once only if as a switchback
	in a neighboring tridant

Jason Haury hamx0r