shafi1908

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

	#!/usr/bin/env bash

	PROGNAME=$(basename $0)

	function usage {
	echo "usage: $PROGNAME [-n NAMESPACE] [-m MAX-PODS] -s SERVICE -- COMMAND"
	echo " -s SERVICE K8s service, i.e. a pod selector (required)"
	echo " COMMAND Command to execute on the pods"
	echo " -n NAMESPACE K8s namespace (optional)"
	echo " -m MAX-PODS Max number of pods to run on (optional; default=all)"

	# https://www.quantopian.com/posts/technical-analysis-indicators-without-talib-code

	import numpy
	import pandas as pd
	import math as m

	#Moving Average
	def MA(df, n):
	MA = pd.Series(pd.rolling_mean(df['Close'], n), name = 'MA_' + str(n))
	df = df.join(MA)