old_contents: import pandas as pd
  
  # TODO: Load up the dataset
  # Ensuring you set the appropriate header column names
  #
  # .. your code here ..
  df = pd.read_csv('course-python-datascience-ms/DAT210x/Module2/Datasets/servo.data', 
                   names=['motor', 'screw', 'pgain', 'vgain', 'class'])
  
  
  # TODO: Create a slice that contains all entries
  # having a vgain equal to 5. Then print the 
  # length of (# of samples in) that slice:
  #
  # .. your code here ..
  r = df.loc[['vgain' == 5],:]
  
  # TODO: Create a slice that contains all entries
  # having a motor equal to E and screw equal
  # to E. Then print the length of (# of
  # samples in) that slice:
  #
  # .. your code here ..
  
  
  
  # TODO: Create a slice that contains all entries
  # having a pgain equal to 4. Use one of the
  # various methods of finding the mean vgain
  # value for the samples in that slice. Once
  # you've found it, print it:
  #
  # .. your code here ..
  
  
  
  # TODO: (Bonus) See what happens when you run
  # the .dtypes method on your dataframe!
  
  
  
  
new_contents: import pandas as pd
  
  # TODO: Load up the dataset
  # Ensuring you set the appropriate header column names
  #
  # .. your code here ..
  df = pd.read_csv('~/course-python-datascience-ms/DAT210x/Module2/Datasets/servo.data', 
                   names=['motor', 'screw', 'pgain', 'vgain', 'class'])
  
  
  # TODO: Create a slice that contains all entries
  # having a vgain equal to 5. Then print the 
  # length of (# of samples in) that slice:
  #
  # .. your code here ..
  samples = df[df.vgain==5]
  l = len(samples)
  
  # TODO: Create a slice that contains all entries
  # having a motor equal to E and screw equal
  # to E. Then print the length of (# of
  # samples in) that slice:
  #
  # .. your code here ..
  
  
  
  # TODO: Create a slice that contains all entries
  # having a pgain equal to 4. Use one of the
  # various methods of finding the mean vgain
  # value for the samples in that slice. Once
  # you've found it, print it:
  #
  # .. your code here ..
  
  
  
  # TODO: (Bonus) See what happens when you run
  # the .dtypes method on your dataframe!
  
  
  
  
subject: advance assig 3