Gerenuk’s gists

Gerenuk / print_lambda.py

Last active August 4, 2022 11:02

Print graphical lambda calculus

	from arpeggio.cleanpeg import ParserPEG
	from arpeggio import PTNodeVisitor, visit_parse_tree

	GRAMMAR=r"""
	full = expr EOF
	expr = var / function / application
	function = "/" var "." expr
	application = "(" expr expr ")"
	var = r"\w+"
	"""

Gerenuk / street_normalize.py

Created June 29, 2020 16:42

Gerenuk / HauntedPirates

Created May 22, 2020 19:39

Haunted Pirates Bots

	#!/usr/bin/env python


	import contextlib as __stickytape_contextlib

	@__stickytape_contextlib.contextmanager
	def __stickytape_temporary_dir():
	import tempfile
	import shutil
	dir_path = tempfile.mkdtemp()

Gerenuk / FleeingMiner

Last active May 22, 2020 15:38

Miner trying to flee from Pirates

	#!/usr/bin/env python


	import contextlib as __stickytape_contextlib

	@__stickytape_contextlib.contextmanager
	def __stickytape_temporary_dir():
	import tempfile
	import shutil
	dir_path = tempfile.mkdtemp()

Gerenuk / gist:3c84abdfd571d62b4cc61118e6ebf942

Created August 6, 2018 12:55

Time Series Summary

	:toc:
	:toc-placement: left
	toc::[]

	== Summary

	* mostly from https://otexts.org/fpp2/[Forecasting: Principles and Practice (Hyndman, Athanasopoulos)]
	* "stationary": properties do not depend on absolute time (e.g. fixed time seasons; but may have cycles due to dependence on past values)
	* centered moving average will smooth out seasons (e.g. 1/8,1/4,1/4,1/4,1/8)
	* maybe transform data if want to restrict to range (e.g. log for positive values) or variances are changing (e.g. Box-Cox transform)

Gerenuk / gist:327746121156437941f478b3724c03d7

Last active December 21, 2017 22:34

Interpretation of a Monoid in Python

	from functools import reduce
	from operator import add


	def monoid(combine, create=lambda x:x):
	def wrapped(val):
	return Monoid(combine, create(val))
	return wrapped