Los Angeles, California 😎. The City of Angels. Tinseltown. The Entertainment Capital of the World!
Known for its warm weather, palm trees, sprawling coastline, and Hollywood, along with producing some of the most iconic films and songs. However, as with any highly populated city, it isn't always glamorous and there can be a large volume of crime. That's where you can help!
You have been asked to support the Los Angeles Police Department (LAPD) by analyzing crime data to identify patterns in criminal behavior. They plan to use your insights to allocate resources effectively to tackle various crimes in different areas.
The Data
They have provided you with a single dataset to use. A summary and preview are provided below.
It is a modified version of the original data, which is publicly available from Los Angeles Open Data.
crimes.csv
| Column | Description |
|---|---|
'DR_NO' | Division of Records Number: Official file number made up of a 2-digit year, area ID, and 5 digits. |
'Date Rptd' | Date reported - MM/DD/YYYY. |
'DATE OCC' | Date of occurrence - MM/DD/YYYY. |
'TIME OCC' | In 24-hour military time. |
'AREA NAME' | The 21 Geographic Areas or Patrol Divisions are also given a name designation that references a landmark or the surrounding community that it is responsible for. For example, the 77th Street Division is located at the intersection of South Broadway and 77th Street, serving neighborhoods in South Los Angeles. |
'Crm Cd Desc' | Indicates the crime committed. |
'Vict Age' | Victim's age in years. |
'Vict Sex' | Victim's sex: F: Female, M: Male, X: Unknown. |
'Vict Descent' | Victim's descent:
|
'Weapon Desc' | Description of the weapon used (if applicable). |
'Status Desc' | Crime status. |
'LOCATION' | Street address of the crime. |
# Q1: Hour with highest frequency of crimes
# Import required libraries
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns
df = pd.read_csv("crimes.csv", dtype={"TIME OCC": int})
df['TIME OCC'].astype(int)
# We need to create bins of the hour
# Creating the bins
bins = list(range(0, 2400, 100))
labels =list(range(0, 23, 1))
df['Hour'] = pd.cut(df['TIME OCC'], bins=bins, labels=labels, right=False)
peak_crime_hour_series = df['Hour'].value_counts()
peak_crime_hour = peak_crime_hour_series.index[0]# Q2: Area with the highest frequency of night crimes (22.00-3.59)
# Import required libraries
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns
df = pd.read_csv("crimes.csv", dtype={"TIME OCC": int})
df['TIME OCC'].astype(int)
# Slicing the df into night time only
night_df = df[(df['TIME OCC'] >= 2200) | (df['TIME OCC'] <= 359)]
night_df
# Grouping by Area & returning the area name as string
area_crimes = night_df.groupby('AREA NAME', as_index=False)[['AREA NAME']].value_counts().sort_values(by='count', ascending=False)
peak_night_crime_location = area_crimes.iloc[0,0]
peak_night_crime_location# Q3: Number of crime committed againts different age groups
# Import required libraries
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns
df = pd.read_csv("crimes.csv", dtype={"TIME OCC": int})
df['TIME OCC'].astype(int)
# Creating the age bins
age_bins = [0, 17, 25, 34, 44, 54, 64, np.inf]
age_labels = ["0-17", "18-25", "26-34", "35-44", "45-54", "55-64", "65+"]
df['Age bin'] = pd.cut(df['Vict Age'], bins=age_bins, labels=age_labels)
# Grouping by the Age bin and counting the number of crimes
victim_ages = df['Age bin'].value_counts()
victim_ages