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| #importing libraries | |
| import statsmodels.api as stat | |
| import statsmodels.tsa.stattools as ts | |
| import quandl | |
| #fetching financial data for two securities from Quandl | |
| data1 = quandl.get("CHRIS/MCX_AL1", start_date="2016-11-01", api_key= 'U_PJwA55r5u8Lz_uFJ6L') | |
| data2 = quandl.get("CHRIS/MCX_PB1", start_date="2014-04-01", api_key= 'U_PJwA55r5u8Lz_uFJ6L') | |
| #printing the first 5 rows of our fetched data |
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| # Importing libraries | |
| import statsmodels.api as stat | |
| import statsmodels.tsa.stattools as ts | |
| import quandl | |
| # Fetching financial data for two securities from Quandl | |
| data1 = quandl.get("CHRIS/MCX_AL1", start_date="2014-04-01", api_key= '') | |
| data2 = quandl.get("CHRIS/MCX_PB1", start_date="2014-04-01", api_key= '') | |
| # Printing the first 5 rows of our fetched data |
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| # Creating a time series with duplicated indices | |
| datesdup = [datetime(2018, 1, 1), datetime(2018, 1, 2), datetime(2018, 1, 2), datetime(2018, 1, 2), datetime(2018, 1, 3)] | |
| dup_ts = pd.Series(np.random.randn(5), index=datesdup) | |
| dup_ts |
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| # Creating a time series with random numbers | |
| import numpy as np | |
| from random import random | |
| dates = [datetime(2011, 1, 2), datetime(2011, 1, 5), datetime(2011, 1, 7), datetime(2011, 1, 8), datetime(2011, 1, 10), datetime(2011, 1, 12)] | |
| ts = pd.Series(np.random.randn(6), index=dates) | |
| ts |
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| # Converting datetime to string | |
| my_date1 = datetime(2018,2,14) | |
| str(my_date1) | |
| # Converting a string to datetime | |
| datestr = '2018-02-14' | |
| datetime.strptime(datestr, '%Y-%m-%d') |
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| # Importing pandas | |
| import pandas as pd | |
| # Using pandas to parse dates | |
| datestrs = ['1/14/2018', '2/14/2018'] | |
| # ‘to_datetime’ method in pandas are used to convert date strings to dates | |
| pd.to_datetime(datestrs) |
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| # Computes the forecasted values | |
| stock['forecast'] = intercept + slope*stock['t'] | |
| # Computes the error | |
| stock['error'] = stock['Adj Close'] - stock['forecast'] | |
| mean_error=stock['error'].mean() | |
| print ('The mean error is: ', mean_error) |
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| stock = yf.download('MRF.BO','2012-01-01', '2017-12-31') | |
| # Populates the time period number in stock under head t | |
| stock['t'] = range (1,len(stock)+1) | |
| # Computes t squared, tXD(t) and n | |
| stock['sqr t']=stock['t']**2 | |
| stock['tXD']=stock['t']*stock['Adj Close'] | |
| n=len(stock) |
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| from matplotlib import pyplot | |
| from statsmodels.graphics.tsaplots import plot_acf | |
| import yfinance as yf | |
| tesla = yf.download('TSLA','2019-01-27', '2020-02-11') | |
| plot_acf(tesla['Close'], lags=20) | |
| pyplot.show() |
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| from statsmodels.graphics.tsaplots import plot_pacf | |
| plot_pacf(tesla['Close'], lags=20) | |
| pyplot.show() |