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app_pit_charts.py
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app_pit_charts.py
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"""
app_pit_charts.py illustrates use of TPRU-India taxcalc release 2.0.0
USAGE: python app_pit_charts.py
"""
import pandas as pd
from taxcalc import *
import numpy as np
from babel.numbers import format_currency
import matplotlib.pyplot as plt
from matplotlib.gridspec import GridSpec
# Generate Charts
# first merge the files
START_YEAR = 2017
END_YEAR = 2023
BASE_YEAR = 2019
year = START_YEAR
a = {}
for year in range(BASE_YEAR, END_YEAR+1):
filename1 = 'dist-table-all-clp-avg-'+str(year)+'.txt'
df1 = pd.read_fwf(filename1)
df1.drop('Unnamed: 0', axis=1, inplace=True)
col_list = df1.columns[1:] + '_avg_clp_' + str(year)
col_list = col_list.insert(0, 'Income_Bracket')
df1.columns = col_list
filename2 = 'dist-table-all-clp-total-'+str(year)+'.txt'
df2 = pd.read_fwf(filename2)
df2.drop('Unnamed: 0', axis=1, inplace=True)
col_list = df2.columns[1:] + '_total_clp_' + str(year)
col_list = col_list.insert(0, 'Income_Bracket')
df2.columns = col_list
a[year] = pd.merge(df1, df2, how="inner", on="Income_Bracket")
filename3 = 'dist-table-all-ref-avg-'+str(year)+'.txt'
df3 = pd.read_fwf(filename3)
df3.drop('Unnamed: 0', axis=1, inplace=True)
col_list = df3.columns[1:] + '_avg_ref_' + str(year)
col_list = col_list.insert(0, 'Income_Bracket')
df3.columns = col_list
a[year] = pd.merge(a[year], df3, how="inner", on="Income_Bracket")
filename4 = 'dist-table-all-ref-total-'+str(year)+'.txt'
df4 = pd.read_fwf(filename4)
df4.drop('Unnamed: 0', axis=1, inplace=True)
col_list = df4.columns[1:] + '_total_ref_' + str(year)
col_list = col_list.insert(0, 'Income_Bracket')
df4.columns = col_list
a[year] = pd.merge(a[year], df4, how="inner", on="Income_Bracket")
df = a[BASE_YEAR]
for year in range(BASE_YEAR+1, END_YEAR+1):
df = pd.merge(df, a[year], how="inner", on="Income_Bracket")
df.set_index('Income_Bracket', inplace=True)
df.to_csv('dist-table-all-years.csv', index=True)
df = pd.read_csv('dist-table-all-years.csv')
df.set_index('Income_Bracket', inplace=True)
df_pit_total_clp = df[df.columns[df.columns.str.startswith('pitax_total_clp')]]
df_pit_total_ref = df[df.columns[df.columns.str.startswith('pitax_total_ref')]]
clp_pitax_list = df_pit_total_clp.loc['ALL'].tolist()
clp_pitax_list = [float(i.replace(',', '')) for i in clp_pitax_list]
clp_pitax_list = [round(elem, 0) for elem in clp_pitax_list]
ref_pitax_list = df_pit_total_ref.loc['ALL'].tolist()
ref_pitax_list = [float(i.replace(',', '')) for i in ref_pitax_list]
ref_pitax_list = [round(elem, 0) for elem in ref_pitax_list]
years = [x[-4:] for x in list(df_pit_total_clp.columns)]
plt.style.use('seaborn-whitegrid')
fig = plt.figure()
"""
ax = plt.axes()
ax.plot(x, np.sin(x))
ax.set(xlim=(0, 10), ylim=(-2, 2),
xlabel='x', ylabel='sin(x)',
title='A Simple Plot')
"""
# plt.axis([2017, 2021, 150000, 400000])
plt.title("Estimated Tax Collection")
plt.xlabel("Year")
plt.ylabel("Tax Collection in lakh Cr.")
"""
print(year)
print(clp_pitax_list)
print(ref_pitax_list)
"""
plt.plot(years, clp_pitax_list, linestyle='-', marker='o', color='b',
label='Current Law', linewidth=2.0)
plt.plot(years, ref_pitax_list, linestyle='--', marker='o', color='r',
label='Reform', linewidth=2.0)
plt.legend(loc='best')
plt.savefig('Total_collection_PIT.png')
plt.show()
# generating bar chart for difference in average tax burden due to reform
# for 2020 - the first year of reform
year = 2020
df_pitax_diff = df['pitax_diff_avg_ref_'+str(year)]
df_pitax_diff = df_pitax_diff[:-1]
df_pitax_diff = df_pitax_diff[2:]
df_pitax_diff = df_pitax_diff.reset_index()
pitax_inc_brac_list = df_pitax_diff['Income_Bracket'].tolist()
pitax_diff_list = df_pitax_diff['pitax_diff_avg_ref_'+str(year)].tolist()
pitax_diff_list = [float(i.replace(',', '')) for i in pitax_diff_list]
plt.rcdefaults()
# plt.style.use('seaborn-whitegrid')
fig, ax = plt.subplots(figsize=(8, 5))
# Example data
x_pos = np.arange(len(pitax_inc_brac_list))
ax.bar(x_pos, pitax_diff_list, color='green')
ax.set_xticks(x_pos)
ax.set_xticklabels(pitax_inc_brac_list)
# ax.invert_yaxis() # labels read top-to-bottom
ax.set_ylabel('Rupees')
ax.set_xlabel('Income Bracket')
ax.invert_yaxis()
ax.set_title('Change in Average Tax Burden Due to Reform in 2020')
plt.savefig('Average Tax Burden Change.png')
plt.show()
# generating pie chart for contribution of tax by different income groups
# for 2020 - the first year of reform
year = 2020
df_pitax_tot_clp = df['pitax_total_clp_'+str(year)]
df_pitax_tot_clp = df_pitax_tot_clp[:-1]
df_pitax_tot_clp = df_pitax_tot_clp[2:]
df_pitax_tot_clp = df_pitax_tot_clp.reset_index()
pitax_inc_brac_list_clp = df_pitax_tot_clp['Income_Bracket'].tolist()
pitax_tot_list_clp = df_pitax_tot_clp['pitax_total_clp_'+str(year)].tolist()
pitax_tot_list_clp = [float(i.replace(',', '')) for i in pitax_tot_list_clp]
pitax_tot_list_clp = [round(elem) for elem in pitax_tot_list_clp]
fig, ax = plt.subplots(figsize=(10, 10))
# only "explode" the 5th slice (contributing to max revenue)
explode = (0, 0, 0, 0, 0.1, 0, 0, 0, 0)
ax.pie(pitax_tot_list_clp, explode=explode, labels=pitax_inc_brac_list_clp,
autopct='%1.1f%%', shadow=False, startangle=90)
ax.axis('equal') # Equal aspect ratio ensures that pie is drawn as a circle
plt.suptitle('Contribution by Income Bracket to total PIT in 2020',
fontsize=16, fontweight="bold")
ax.set_title('Current Law', fontsize=16, fontweight="bold")
plt.savefig('Contribution to total PIT.png')
plt.show()
# generating pie chart for comparing contribution of tax by different
# income groups for clp and reform for 2020 - the first year of reform
year = 2020
df_pitax_tot = df['pitax_total_ref_'+str(year)]
df_pitax_tot = df_pitax_tot[:-1]
df_pitax_tot = df_pitax_tot[2:]
df_pitax_tot = df_pitax_tot.reset_index()
pitax_inc_brac_list = df_pitax_tot['Income_Bracket'].tolist()
pitax_tot_list = df_pitax_tot['pitax_total_ref_'+str(year)].tolist()
pitax_tot_list = [float(i.replace(',', '')) for i in pitax_tot_list]
pitax_tot_list = [round(elem) for elem in pitax_tot_list]
fig, (ax1, ax2) = plt.subplots(1, 2, figsize=(10, 5))
# fig, ax = plt.subplots(figsize=(10, 5))
# the_grid = GridSpec(2, 2)
# only "explode" the 5th slice (contributing to max revenue)
explode = (0, 0, 0, 0, 0.1, 0, 0, 0, 0)
# plt.subplot(the_grid[1, 0], aspect=1)
plt.suptitle('Contribution by Income Bracket to total PIT in 2020',
fontsize=16, fontweight="bold")
ax1.pie(pitax_tot_list_clp, explode=explode, labels=pitax_inc_brac_list_clp,
autopct='%1.1f%%', shadow=False, startangle=90)
ax1.axis('equal') # Equal aspect ratio ensures that pie is drawn as a circle
# plt.subplot(the_grid[0, 1], aspect=1)
ax2.pie(pitax_tot_list, explode=explode, labels=pitax_inc_brac_list,
autopct='%1.1f%%', shadow=False, startangle=90)
ax2.axis('equal') # Equal aspect ratio ensures that pie is drawn as a circle
ax1.set_title('Current Law', fontweight="bold")
ax2.set_title('Reform', fontweight="bold")
plt.savefig('Contribution to total PIT - Before and After Reform.png')
plt.show()