agfor’s gists

agfor / TemporalNoise.java

Created April 23, 2012 22:51

A brief snippet to help a non-programmer engineer friend using ImageJ to do some basic time domain statistics on a series of raw image files

	import java.io.*;
	import java.lang.Math;

	public class Temporal_Noise {
	public static void main(String[] args) {
	Temporal_Noise tn = new Temporal_Noise();
	tn.run(null);
	}
	public void run(String dir_name) {
	if (dir_name == null)

agfor / extraitertools.py

Created April 23, 2012 22:55

A few extra itertools-esque snippets

	import collections
	import itertools

	def last(iterable, deque=collections.deque):
	return deque(iterable, maxlen = 1)[0]

	def iterlen(iterable):
	return sum(1 for _ in iterable)

	def droptake(iterable, takecondition, dropcondition = None,

agfor / huffman.py

Created April 23, 2012 23:04

A Huffman Coder / decoder written as a sandbox to experiment with hybrid OO and functional code

	from __future__ import with_statement
	from heapq import heapify, heappop, heappushpop
	from itertools import count
	from mmap import mmap
	try:
	from collections import Counter
	except:
	def Counter(iterable):
	frequencies = __import__('collections').defaultdict(int)
	for item in iterable:

agfor / skein.py

Last active February 22, 2021 23:50

A pure-Python implementation of a subset of the Skein hash function. Written to see if I understood the spec.

	from __future__ import print_function, division
	from math import ceil
	from operator import xor, getitem
	from functools import reduce
	from struct import unpack, pack
	two64 = 0x10000000000000000

	def hexToBytes(hexes):
	hexes = hexes.replace(' ', '')
	return bytes(int(hexes[i:i+2], 16) for i in range(0, len(hexes), 2))

agfor / orderedsets.py

Created April 23, 2012 23:18

Several Ordered Set implementations I wrote after seeing a question about them on Stack Overflow

	from collections import OrderedDict
	class OrderedSet(object):
	def __init__(self, iterable = None):
	self.storage = OrderedDict()
	if iterable:
	self.storage.update((elem, True) for elem in iterable)
	def __contains__(self, elem):
	return elem in self.storage
	def __iter__(self):
	return iter(self.storage)

agfor / fixed_point_combinators.py

Created April 23, 2012 23:19

Some experiments with implementations of fixed point combinators in Python

	from __future__ import print_function
	from collections import defaultdict

	import functools

	def Y(f):
	@functools.wraps(f)
	def Yf(*args):
	return inner(*args)
	inner = f(Yf)

agfor / imagestats.py

Created April 23, 2012 23:21

A Python module to help a non-programmer engineer fried do some statistical analysis on raw images

	#!/usr/bin/env python3
	#from tkFileDialog import askopenfilenames
	from tkinter.filedialog import askopenfilename
	import os, os.path
	from itertools import chain, repeat
	from operator import itemgetter, sub, pow, truediv
	from array import array
	from math import sqrt
	from sys import argv

agfor / Install_tmux

Created July 6, 2012 20:28 — forked from simme/Install_tmux

Install and configure tmux on Mac OS X

	# First install tmux
	brew install tmux

	# For mouse support (for switching panes and windows)
	# Only needed if you are using Terminal.app (iTerm has mouse support)
	Install http://www.culater.net/software/SIMBL/SIMBL.php
	Then install https://bitheap.org/mouseterm/

	# More on mouse support http://floriancrouzat.net/2010/07/run-tmux-with-mouse-support-in-mac-os-x-terminal-app/

agfor / python_conversion.md

Last active May 25, 2018 13:27 — forked from Nurdok/python_conversion.md

Python Number Conversion Chart

From	To	Expression

agfor / search_sorted_matrix.py

Last active December 21, 2015 01:09

	class TransposedMatrix(object):
	def __init__(self, matrix, index = None):
	self.matrix = matrix
	self.index = index

	def __getitem__(self, index):
	if self.index is None:
	return TransposedMatrix(self.matrix, index)
	return self.matrix[index][self.index]