added assignment 5

Introduction-to-Data-Science/Week-3/Saurabh/assignment4.txt

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+Ans-1:
+A class describes the contents of the objects that belong to it,it describes an aggregate of data fields (called instance variables), and defines the operations (called methods). 
+
+Ans-2:
+An object is an element (or instance) of a class.Objects have the behaviors of their class.
+
+Ans-3:
+An object exhibits the property and behaviors defined by its class.
+
+Ans-4:
+class ClassName:
+    <statement-1>
+    .
+    .
+    .
+    <statement-N>
+
+Ans-5:
+A method is a function that takes a class instance as its first parameter.
+
+Ans-6:
+self is needed to distinguish between instances(objects).
+
+Ans-7:
+ __init__ is a special method in Python classes, it is the constructor method for a class.
+
+Ans-8:
+With the help of inheritance,we don,t need to write a code of child class again which prevents in code duplication.
+
+Ans-9:
+import random
+
+class card():
+	suit={"Hearts":['A',2,3,4,5,6,7,8,9,10,'J','Q','K'],"Diamonds":['A',2,3,4,5,6,7,8,9,10,'J','Q','K'],"Clubs":['A',2,3,4,5,6,7,8,9,10,'J','Q','K'],"Spades":['A',2,3,4,5,6,7,8,9,10,'J','Q','K']}
+class deck_of_card(card):
+	def shuffle_(self):
+		if(len(card().suit["Hearts"])+len(card().suit["Diamonds"])+len(card().suit["Clubs"])+len(card().suit["Spades"])==52 ):
+			print("ALL CARD PRESENT")
+		for i in card().suit:
+			random.shuffle(card().suit[i])
+	def deal(self,card_suit,card_no):
+		print("dealt card is ",card_suit,card_no)
+		card().suit[card_suit].remove(card_no)
+
+
+Ans-10:
+class person:
+	def __init__(self,fname,lname,phone_no,*email):
+		self.first_name=fname
+		self.last_name=lname
+		self.phone_no=phone_no
+		self.email=email
+class address_book(person):
+	addbook=[]
+	def __init__(self,info):
+		self.add_contact(info)
+	def add_contact(self,info):
+		self.addbook.append(info)
+	def lookup_contact(self,lname,fname="none"):
+		for i in self.addbook:
+			if(fname=="none"):			
+				if(i.last_name==lname):
+					print(i.first_name,i.last_name,i.phone_no,i.email)
+			else:
+				if(i.last_name==lname and i.first_name==fname):
+					print(i.first_name,i.last_name,i.phone_no,i.email)
+
+
+

Introduction-to-Data-Science/Week-3/Saurabh/assignment5.txt

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+Ans-1
+opens a file for both appending and reading in binary format.
+
+Ans-2
+Every file when read,transfers data to an intermediate bufferbefore it can be accessed by python.
+
+Ans-3
+code:
+try:
+	file=open("file.txt","r")
+	a=1/0
+except IOError:
+	print("Error: file doesn't exist")
+except ZeroDivisionError:
+	print("Zero Division Error")
+except SyntaxError:
+	print("Syntax Error")
+
+
+
+
+Ans-4
+code:
+file=open("qn4.txt",'r')
+my_list=[]
+while True:
+	line=file.readline()
+	my_list.append(line)
+	if not line:
+		break
+for i in range(len(my_list)-1,-1,-1):
+	print(my_list[i])
+

Introduction-to-Data-Science/Week-5/SAURABH/ASSIGNMENT6.txt

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+Ans-1:
+import numpy as np
+import pandas as pd
+
+player_match=pd.read_csv("DIM_PLAYER_MATCH.csv",delimiter=',',encoding=":ISO-8859-1",skiprows=[1])
+
+per={}
+
+for i in range (2008,2018):
+    young=player_match.loc[(player_match.Season_year ==i) & (player_match.Age_As_on_match <25)]['Player_Id'].unique()
+    allp=player_match.loc[(player_match.Season_year == i)]['Player_Id'].unique()
+    per[i]=len(young)/len(allp)*100
+print(per)
+
+teamn={}
+for i in range (2008,2018):
+    max=0
+    teamname='NULL'
+    for team in player_match.Player_team.unique():
+        young=player_match.loc[(player_match.Player_team ==team) & (player_match.Age_As_on_match <25) & (player_match.Season_year==i)]['Player_Id'].unique()
+        if(len(young)>max):
+            max=len(young)
+            teamname=team
+    teamn[i]=teamname
+print(teamn)
+
+award=player_match.loc[(player_match.Age_As_on_match <25)&(player_match.is_manofThematch==1)]['Player_Id'].unique()
+total=player_match.loc[(player_match.is_manofThematch==1)]['Player_Id'].unique()
+print(len(award)/len(total)*100)
+
+Ans-2:
+player_match['Batting_hand'] = player_match['Batting_hand'].map({'Right-hand bat':'Right-handed',
+                                                                 '\xa0Right-hand bat':'Right-handed',
+                                                                'Left-hand bat' : 'Left-handed',
+                                                               '\xa0Left-hand bat' : 'Left-handed'})
+right=player_match.loc[(player_match.Batting_hand=='Right-handed')&(player_match.is_manofThematch==1)]
+left=player_match.loc[(player_match.Batting_hand=='Left-handed')&(player_match.is_manofThematch==1)]
+print("No. of times Right handed player won Man of the Match:",len(right))
+print("No. of times Left handed player won Man of the Match:",len(left))
+player_match['Bowling_skill']=player_match['Bowling_skill'].map({
+      'Right-arm offbreak':'spin','Right-arm medium':'pace',
+        'Right-arm fast-medium':'pace','Left-arm fast-medium':'pace','Legbreak googly':'spin',
+        'Right-arm medium-fast':'pace',
+        'Slow left-arm orthodox':'spin','Right-arm fast':'pace',
+        'Slow left-arm chinaman':'spin','Left-arm medium-fast':'pace',
+       'Legbreak':'Spin','Right-arm bowler':'pace','Left-arm medium':'pace',
+        'Left-arm fast':'pace','\xa0Left-arm fast':'pace','\xa0Right-arm fast-medium':'pace',
+        'Right-arm medium fast':'pace','\xa0Right-arm medium-fast':'pace',
+        '\xa0Right-arm offbreak':'spin','\xa0Legbreak':'spin'})
+Pace=player_match[(player_match.Bowling_skill=='pace')&(player_match.is_manofThematch==1)]
+Spin=player_match[(player_match.Bowling_skill=='spin')&(player_match.is_manofThematch==1)]
+print("Pace Bowling Man of the Match:",len(Pace))
+print("Spin Bowling Man of the Match:",len(Spin))
+
+Ans-3:
+player_match['Batting_hand'] = player_match['Batting_hand'].map({'Right-hand bat':'Right-handed',
+                                                                 '\xa0Right-hand bat':'Right-handed',
+                                                                'Left-hand bat' : 'Left-handed',
+                                                               '\xa0Left-hand bat' : 'Left-handed'})
+right=player_match[(player_match.Batting_hand=='Right-handed')&(player_match.is_manofThematch==1)]['Player_Name'].value_counts()
+left=player_match[(player_match.Batting_hand=='Left-handed')&(player_match.is_manofThematch==1)]['Player_Name'].value_counts()
+player_match['Bowling_skill']=player_match['Bowling_skill'].map({
+      'Right-arm offbreak':'spin','Right-arm medium':'pace',
+        'Right-arm fast-medium':'pace','Left-arm fast-medium':'pace','Legbreak googly':'spin',
+        'Right-arm medium-fast':'pace',
+        'Slow left-arm orthodox':'spin','Right-arm fast':'pace',
+        'Slow left-arm chinaman':'spin','Left-arm medium-fast':'pace',
+       'Legbreak':'Spin','Right-arm bowler':'pace','Left-arm medium':'pace',
+        'Left-arm fast':'pace','\xa0Left-arm fast':'pace','\xa0Right-arm fast-medium':'pace',
+        'Right-arm medium fast':'pace','\xa0Right-arm medium-fast':'pace',
+        '\xa0Right-arm offbreak':'spin','\xa0Legbreak':'spin'})
+spin=player_match[(player_match.Bowling_skill=='spin')&(player_match.is_manofThematch==1)]['Player_Name'].value_counts()
+pace=player_match[(player_match.Bowling_skill=='pace')&(player_match.is_manofThematch==1)]['Player_Name'].value_counts()
+wktkeeper=player_match[((player_match.Role_Desc=='Keeper')|(player_match.Role_Desc=='CaptainKeeper'))&(player_match.is_manofThematch==1)]['Player_Name'].value_counts()
+allr=player_match[(player_match.Bowling_skill!='N/A')&(player_match.is_manofThematch==1)]['Player_Name'].value_counts()
+print("the team is")
+print(right[:2])
+print(left[:2])
+print(wktkeeper[:1])
+print(allr[:1])
+print(pace[:3])
+print(spin[:2])
+
+Ans-4:
+max=0
+for team in player_match.Player_team.unique():
+    for team1 in player_match.Player_team.unique():
+        series=player_match[(player_match.Player_team==team)&(player_match.Opposit_Team==team1)&(player_match.IsPlayers_Team_won==1)]['Match_Id'].value_counts()
+        if(max<len(series)):
+            pteam=team
+            oteam=team1
+            max=len(series)
+print("the team which won maximum no. of matches is",pteam,"against",oteam)
+