Mengyuz

import numpy as np
import scipy
import matplotlib.pyplot as plt
import sys

def compute_r_squared(data, predictions):
    '''
    In exercise 5, we calculated the R^2 value for you. But why don't you try and
    and calculate the R^2 value yourself.
    

Mengyuz

from pandas import *
from ggplot import *

def plot_weather_data(turnstile_weather):
    '''
    You are passed in a dataframe called turnstile_weather. 
    Use turnstile_weather along with ggplot to make a data visualization
    focused on the MTA and weather data we used in assignment #3.  
    You should feel free to implement something that we discussed in class 
    (e.g., scatterplots, line plots, or histograms) or attempt to implement

Mengyuz

from pandas import *
from ggplot import *

def plot_weather_data(turnstile_weather):
    ''' 
    plot_weather_data is passed a dataframe called turnstile_weather. 
    Use turnstile_weather along with ggplot to make another data visualization
    focused on the MTA and weather data we used in Project 3.
    
    Make a type of visualization different than what you did in the previous exercise.