anirudhjayaraman

anirudhjayaraman

def merge_tuple(a,b):
    """ Function to merge two arrays of tuples """
    c = []
    while len(a) != 0 and len(b) != 0:
        if a[0][0] < b[0][0]:
            c.append(a[0])
            a.remove(a[0])
        else:
            c.append(b[0])
            b.remove(b[0])

anirudhjayaraman

anirudhjayaraman

anirudhjayaraman

from random import randrange

def partition(x, pivot_index = 0):
    i = 0
    if pivot_index !=0: x[0],x[pivot_index] = x[pivot_index],x[0]
    for j in range(len(x)-1):
        if x[j+1] < x[0]:
            x[j+1],x[i+1] = x[i+1],x[j+1]
            i += 1
    x[0],x[i] = x[i],x[0]

anirudhjayaraman

#!/usr/bin/env

# Case I
# First element of the unsorted array is chosen as pivot element for sorting using Quick Sort


def countComparisonsWithFirst(x):
    """ Counts number of comparisons while using Quick Sort with first element of unsorted array as pivot """
    global count_pivot_first
    if len(x) == 1 or len(x) == 0:

anirudhjayaraman

2148
9058
7742
3153
6324
609
7628
5469
7017
504

anirudhjayaraman

def quicksort(x):
    if len(x) == 1 or len(x) == 0:
        return x
    else:
        pivot = x[0]
        i = 0
        for j in range(len(x)-1):
            if x[j+1] < pivot:
                x[j+1],x[i+1] = x[i+1], x[j+1]
                i += 1

anirudhjayaraman

## if fxregime is absent from installed packages, download it and load it
if(!require('fxregime')){
  install.packages("fxregime")
}
## load package 
library("fxregime")
# load the necessary data related to exchange rates - 'FXRatesCHF'
# this dataset treats CHF as unit currency

# install / load Quandl

anirudhjayaraman

## if fxregime or strucchange package is absent from installed packages, download it and load it
if(!require('fxregime')){
  install.packages("fxregime")
}
if(!require('strucchange')){
  install.packages("strucchange")
}

## load packages 
library("fxregime")