Tim Menzies timm

WARNING

this code contains a tiny, but devistating, error. In Row.__lt__, the code never uses information from the other row so the lsit coems back in almost the same order as it started in.

For the fixed system see https://github.com/txt/sin21/blob/main/docs/hw5.md

Misc Config Tricks

Name

tiny.py

Synopsis

For classes that are mostly data stores, with few (or no) methods.

Install

How to estimate standard deviation, using percentiles

Numbers drawn from a gaussian with (mean,sd) = (0,1) can be approximated using (90th-10th) percentile divided by "e"; i.e.

(90th - 10th) / e

The following code shows that for sample sizes of 20 to 1000 then the best estiamtor is around 2.4 to 2.6 (with a mean of 2.56).

	#!/usr/bin/env python3
	"""
	Name:
	there.py : learn how to change, for the better

	Version:
	0.2

	Usage:
	there [options]

	(defun argv () sb-ext:posix-argv)

	(defmacro while (expr &body body)
	`(do ((now ,expr ,expr)) ((not now)) ,@body))

	(defun deepcopy (x)
	(if (atom x) x (mapcar #'deepcopy x)))

	(defun cli (flags &key
	(help "help")

	#!/usr/bin/env python3
	# vim: ts=2 sw=2 sts=2 et tw=81:
	# Succinct CLI tool that uses from function name, docstring, and default args.
	# (c) 2021 Tim Menzies <[email protected]>, MIT License
	import inspect
	import argparse as arg

	def cli(f):
	def details(x,txt):
	isa, a = isinstance, None

	#!/bin/bash
	# utilitymenu.sh - A sample shell script to display menus on screen
	# Store menu options selected by the user
	INPUT=/tmp/menu.sh.$$

	# Storage file for displaying cal and date command output
	OUTPUT=/tmp/output.sh.$$

	# get text editor or fall back to vi_editor
	vi_editor=${EDITOR-vi}

	(defun ipo (factors)
	"From a list of ranges, generate test cases for each range
	using Lei & Tai PairTest function for generating pairwise tests
	in-parameter-order. By Andy Barrett"
	(let (tests)
	;; for the first two parameters p1 and p2
	(dotimes (i (car factors))
	(dotimes (j (cadr factors))
	(let ((test (make-list (length factors) :initial-element 0)))
	(setf (car test) (+ 1 i))

	# usage: gawk -f life.awk
	# Then hit and hold the return key.
	# For each key press, you get one new generation.

	# Each generation, a cell C is alive 1 or dead 0.
	# In the next generation each cell C is alive or dead
	# depending on a count of its neighbours N
	#
	# Now Neighbors Next
	# --- --------- --------------