samrat’s gists

samrat / bookmarklet.js

Created October 21, 2011 04:01

Videodropper bookmarklet- under progress

	if (!($ = window.jQuery)) { // typeof jQuery=='undefined' works too
	script = document.createElement('script');
	script.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js';
	script.onload = videodropper_bookmarklet;
	document.body.appendChild(script);
	}
	else {
	videodropper_bookmarklet();
	}
	d = document; b = d.body;

samrat / csv2json.py

Created September 17, 2011 08:52

Converting CSV file(from Google Spreadsheet) to JSON

	# script for converting Google Spreadsheets .CSV file to JSON
	import csv
	import simplejson as json
	f = open('path/to/filename.csv', 'r')
	reader = csv.reader(f)
	keys = ('Name', 'Address') #replace/add keys here
	out = []

	out = [dict(zip(keys, property)) for property in reader]
	out.remove(out[0]) # removing the first row- keys

samrat / guessthenumber.html

Created September 17, 2011 04:18

guess the number game

	<html>
	<body>

	<form name="guess">
	<input type="text" name="num">
	<input type="button" onclick="checkGuess()" value="Submit">
	</form>

	<script type="text/javascript">
	var answer = Math.floor(Math.random()*11);

samrat / euclid_algo.py

Created September 12, 2011 14:56

Euclid's algorithm for finding greatest common divisor implemented in Python

	def HCF(a,b):
	''' Returns HCF(highest common factor) of a and b
	http://en.wikipedia.org/wiki/Euclidean_algorithm
	'''
	great = max(a,b)
	less = min(a,b)
	great = great % less
	if great == 0:
	return less
	return HCF(great, less)

samrat / loadsave.py

Created September 1, 2011 18:53

Suspends laptop to save power during unexpected power outages(they're quite common in Nepal)

	'''Checks the state of AC adapter(online or offline) and suspends the computer if offline'''
	#while true ; do python2.7 loadsave.py ; sleep 5m; done
	import os

	comm = '''dbus-send --system --print-reply --dest="org.freedesktop.UPower" \
	/org/freedesktop/UPower org.freedesktop.UPower.Suspend'''

	def loadsave():
	os.system("acpi -a > powerinfo.txt")
	f = open('powerinfo.txt', 'r')

samrat / fizzbuzz.rb

Created September 1, 2011 08:58

samrat / central_limit.py

Created August 31, 2011 07:26

Verifies the Central Limit Theorem for a given Probability Mass Function(PMF)

	'''Verifies the Central Limit Theorem for a given Probability Mass Function(PMF)
	'''
	import Cdf #http://greenteapress.com/thinkstats/Pmf.html
	import Pmf #http://greenteapress.com/thinkstats/Cdf.html
	from thinkstats import Mean #http://greenteapress.com/thinkstats/thinkstats.html
	from matplotlib import pyplot

	pmf = Pmf.MakePmfFromDict( {1:3, 3:7, 6:9, 10:4, 5:9, 10:4, 11:5, 12:8} )
	cdf = Cdf.MakeCdfFromPmf(pmf)

samrat / central_limit_theorem.py

Created August 28, 2011 11:38

Verifying Central Limit Theorem computationally

	from random import randint
	from matplotlib import pyplot

	def gen_mean(sample_size):
	sum = 0
	for i in range(sample_size):
	sum += randint(1, 100)

	mean = ( float(sum) / sample_size )
	return mean

samrat / trapezium.py

Created August 27, 2011 07:40

Definite integration using the trapezium rule

	from __future__ import division

	def trapezium(f, n, a, b):
	'''
	f- function [f(x)]
	n- number of trapeziums
	a- lower limit
	b- upper limit
	Returns definite integral of f(x) from range a to b
	'''

samrat / quicksort.js

Created August 27, 2011 02:49

Samrat Man Singh samrat