Pandas Practical & Real Use Cases

Use Case #18 — Analyze Satisfaction Scores

Measure resident satisfaction and identify operational factors associated with lower scores.

Caso práctico progresivo para transformar datos municipales sucios en información confiable, analizable y útil para decisiones.

Security notice: Run these scripts only in a controlled practice environment. Do not execute them in production or institutional systems without authorization, backups, testing, least-privilege permissions, change control, and compliance with organizational protocols.
Aviso de seguridad: Ejecuta estos scripts únicamente en un ambiente controlado de práctica. No los corras en producción ni en sistemas institucionales sin autorización, respaldos, pruebas, permisos mínimos, control de cambios y cumplimiento de los protocolos organizacionales.

Business Purpose

Propósito de negocio

Measure resident satisfaction and identify operational factors associated with lower scores.

Este caso continúa el flujo real de trabajo con solicitudes de servicios municipales y documenta cada transformación de forma trazable.

Input and Output

Entrada y salida

Inputcity_service_requests_clean_master.csv
Outputsatisfaction_analysis.csv
SeriesUse Case #18 of 20

Results can vary because the source dataset was generated synthetically and randomly. Run the code to obtain the exact values from your local file.

Los resultados pueden variar porque el dataset de origen fue generado de forma sintética y aleatoria. Ejecuta el código para obtener los valores exactos de tu archivo local.

Step 1 — Load valid satisfaction records

import pandas as pd
from pathlib import Path

base = Path.home() / "Documents" / "Pandas_Use_Cases"
input_file = base / "city_service_requests_clean_master.csv"
output_file = base / "satisfaction_analysis.csv"

df = pd.read_csv(input_file)

valid = df[df["Satisfaction_Score"].between(1, 5)].copy()
print(f"Valid scored requests: {len(valid):,}")

Expected Result / Interpretation

Resultado esperado / Interpretación

Only scores within the approved 1–5 range are analyzed.

Step 2 — Review score distribution

distribution = (
    valid["Satisfaction_Score"]
    .value_counts()
    .sort_index()
    .rename("Request_Count")
)

print(distribution.to_string())

Expected Result / Interpretation

Resultado esperado / Interpretación

The frequency of each satisfaction level is displayed.

Step 3 — Calculate satisfaction by department

department_satisfaction = (
    valid.groupby("Department", dropna=False)
      .agg(
          Responses=("Satisfaction_Score", "count"),
          Average_Satisfaction=("Satisfaction_Score", "mean"),
          Median_Satisfaction=("Satisfaction_Score", "median"),
          Average_Resolution_Days=("Resolution_Days", "mean")
      )
      .round(2)
      .sort_values("Average_Satisfaction", ascending=False)
)

print(department_satisfaction.to_string())

Expected Result / Interpretation

Resultado esperado / Interpretación

Departments are compared on satisfaction and response time.

Step 4 — Compare satisfied and dissatisfied requests

valid["Satisfaction_Group"] = pd.cut(
    valid["Satisfaction_Score"],
    bins=[0, 2, 3, 5],
    labels=["Dissatisfied", "Neutral", "Satisfied"]
)

comparison = (
    valid.groupby("Satisfaction_Group", observed=False)
      .agg(
          Request_Count=("Request_ID", "count"),
          Average_Resolution_Days=("Resolution_Days", "mean")
      )
      .round(2)
)

print(comparison.to_string())

Expected Result / Interpretation

Resultado esperado / Interpretación

The analysis tests whether slower resolution is associated with lower satisfaction.

Step 5 — Export satisfaction analysis

department_satisfaction.to_csv(output_file, encoding="utf-8-sig")
print(f"Saved: {output_file}")

Expected Result / Interpretation

Resultado esperado / Interpretación

The output supports service-improvement discussions.

Use Case #18 Completed

Caso de uso #18 completado

The output of this module becomes the controlled input for the next stage of the 20-case Pandas workflow.

La salida de este módulo se convierte en la entrada controlada para la siguiente etapa del flujo de 20 casos de Pandas.

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Explora recursos adicionales relacionados con capacitación local, habilidades prácticas, oportunidades de empleo y crecimiento comunitario.

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Recursos comunitarios enfocados en oficios, habilidades, oportunidades locales y desarrollo profesional práctico.

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