import sqlite3 import pandas as pd import matplotlib.pyplot as plt import numpy as np import seaborn as sns filename = "shopify-selling-data.csv" sns.set(style="darkgrid") sns.set(rc={'figure.figsize':(20,8)})

# The original table, sorted by date created: db = 'challenge1_format.db' def run_query(q): with sqlite3.connect(db) as conn: return pd.read_sql(q,conn) def show_table(): q = ''' SELECT * FROM challenge1_format ORDER BY created_at; ''' return run_query(q) t = show_table() t

t.drop(columns = ['order_id', 'shop_id', 'user_id', 'total_items']).describe().round(2)

q0 = ''' SELECT shop_id, SUM(order_amount)/SUM(total_items) AS price_per_unit, SUM(total_items) AS total_item_sold, COUNT(order_id) AS shop_num_order, SUM(order_amount) AS total_order_value, ROUND(SUM(order_amount)*1.0/COUNT(order_id), 2) AS shop_AOV FROM challenge1_format GROUP BY shop_id ORDER BY total_order_value DESC; ''' t0 = run_query(q0) t0.head(12)

t0.drop(columns='shop_id').describe().round(2)

fig_1_1 = t0.sort_values(by = 'total_item_sold', ascending = False) # fig_1_1 = fig_1_1[fig_1_1.shop_id != 78] # fig_1_1 = fig_1_1.drop(index = 0) #dropping shop 42 and 78 row. fig_1_1.shop_id = fig_1_1.shop_id.astype(str) sns.set(font_scale = 0.6) fig_1_1 = sns.scatterplot(data = fig_1_1, x = 'shop_id', y = 'total_item_sold') fig_1_1.set_title('Figure 1.1: Total item sold for each shop, including the outliers.', fontsize = 14) fig_1_1.set_xlabel("Shop ID", fontsize = 14) fig_1_1.set_ylabel("Total items sold", fontsize = 14)

fig_1_2 = t0.sort_values(by = 'price_per_unit', ascending = False) fig_1_2.shop_id = fig_1_2.shop_id.astype(str) sns.set(font_scale = 0.6) fig_1_2 = sns.scatterplot(data = fig_1_2, x = 'shop_id', y = 'price_per_unit') fig_1_2.set_title('Figure 1.2: Price per Unit for each shop, including the outliers.', fontsize = 14) fig_1_2.set_xlabel("Shop ID", fontsize = 14) fig_1_2.set_ylabel("Price per Unit", fontsize = 14)

adj_t = t.copy() mask = (adj_t['shop_id'] == 42) & (adj_t['total_items'] == 2000) adj_t.loc[mask, 'total_items'] = adj_t.loc[mask, 'total_items']/1000 adj_t.loc[mask, 'order_amount'] = adj_t.loc[mask, 'order_amount']/1000 # adj_t.query('shop_id == 42').sort_values(by = 'total_items', ascending=False) #check the result

adj_detailed = adj_t.groupby('shop_id').agg({'order_id':'count', 'order_amount': 'sum', 'total_items':'sum'}) adj_detailed.reset_index(inplace = True) adj_detailed = adj_detailed.rename(columns = {'order_id': 'shop_num_order', 'order_amount':'total_order_value', 'total_items': 'total_item_sold'}) adj_detailed.sort_values(by = 'total_item_sold', ascending = False)

mov = adj_t['order_amount'].median() print("The Median Order Value is: " + str(mov))

# # Basic statistics for detailed table: # adj_detailed.describe().apply(lambda s: s.apply('{0:.2f}'.format))

adj_detailed.sort_values(by = 'total_item_sold', ascending = False).head(10).drop(columns = ['shop_num_order', 'total_order_value'])

rev.sort_values(by = 'total_order_value', ascending = False).drop(columns = ['shop_num_order', 'total_item_sold']).head(15)