UsePython_IE/Chapter02/Example-2-5.py · yanbridge/Python

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Python

UsePython_IE

Chapter02

Example-2-5.py

Example-2-5.py 530 Bytes

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yanbridge authored 2020年10月07日 19:43 +08:00 . Add files via upload

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import wooldridge as woo
import statsmodels.formula.api as smf
import matplotlib.pyplot as plt

vote1 = woo.dataWoo('vote1')

# OLS regression:
reg = smf.ols(formula='voteA ~ shareA', data=vote1)
results = reg.fit()
b = results.params
print(f'b: \n{b}\n')

# scatter plot and fitted values:
plt.plot('shareA', 'voteA', data=vote1, color='grey', marker='o', linestyle='')
plt.plot(vote1['shareA'], results.fittedvalues, color='black', linestyle='-')
plt.ylabel('voteA')
plt.xlabel('shareA')
plt.savefig('PyGraphs/Example-2-5.pdf')