diff --git a/Excercise_6.py b/Excercise_6.py
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+# Question 1-method 1-use groupby and apply function 
+import pandas as pd 
+import matplotlib.pyplot as plt
+data=pd.read_table("/Users/chenyingying/Documents/Intro_Biocom_ND_319_Tutorial6/UWvMSU_1-22-13.txt")
+data['cumulative score']=data.iloc[:,2]
+data['cumulative score']=data.groupby('team')['cumulative score'].apply(lambda x: x.cumsum())
+# Plot
+fig,ax=plt.subplots(figsize=(8,6))
+ax.set_xlabel('Time')
+ax.set_ylabel('Score')
+data.groupby('team')['cumulative score'].plot(legend=True)
+
+
+# Question 1-method 2-use for loop and if function  
+import pandas as pd 
+import matplotlib.pyplot as plt
+import numpy as np
+data=pd.read_table("/Users/chenyingying/Documents/Intro_Biocom_ND_319_Tutorial6/UWvMSU_1-22-13.txt")
+data['UWscore']=data.iloc[:,2]
+data['UWtemp']=data.iloc[:,2]
+data['MSUscore']=data.iloc[:,2]
+data['MSUtemp']=data.iloc[:,2]
+data.loc[data['team']=='MSU','UWscore']=np.nan
+data.loc[data['team']=='MSU','UWtemp']=0
+data.loc[data['team']=='UW','MSUscore']=np.nan
+data.loc[data['team']=='UW','MSUtemp']=0
+data.head(n=10)
+for i in range (0,len(data.index)):
+    if np.isnan(data.iloc[i,3])==False:
+        data.iloc[i,3]=data.iloc[0:i+1,4].sum()
+    if np.isnan(data.iloc[i,5])==False:
+        data.iloc[i,5]=data.iloc[0:i+1,6].sum()
+# Plot
+fig,ax=plt.subplots(figsize=(8,6))
+ax.set_xlabel('Time')
+ax.set_ylabel('Score')
+x1=data.loc[np.isfinite(data['UWscore']),'time']
+x2=data.loc[np.isfinite(data['MSUscore']),'time']
+plt.plot(x1, data['UWscore'].dropna(),label="UW")
+plt.plot(x2, data['MSUscore'].dropna(),label="MSU")
+plt.legend()
+
+
diff --git a/Plot_Method 1.png b/Plot_Method 1.png
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diff --git a/six.txt b/six.txt
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+import pandas
+import numpy
+
+#this is a guess the number game
+import random
+
+guessesTaken=0
+
+print('Hello! What is your name?')
+myName=input()
+
+number=random.randint(1,100)
+print('Well,'+ myName +',I am thinking of a number between 1 and 100.')
+
+while guessesTaken < 10:
+    print('Take a guess')
+    guess=input()
+    guess=int(guess)
+
+    guessesTaken=guessesTaken + 1
+
+    if guess < number:
+        print('Your guess is too low.')
+    
+    if guess > number:
+        print('Your guess is too high.')
+        
+    if guess == number:
+        guessesTaken= str(guessesTaken)
+        print('Good job,' + myName +'!You guessed my number in' + guessesTaken +'guesses!')
+        
+if guess != number:
+    number= str(number)
+    print('Nope. The number I was thinking of was ' +number)
+    
+    
+
+