phbs-QPS-2024

Fetch US CPI Data Script

This script fetches the US Core CPI data from the Federal Reserve Economic Data (FRED) API and calculates the last 4 quarters of inflation rates. The data is resampled to quarterly averages before calculating the percentage change (inflation rate).

Installation

1. Clone this repository.
2. Install the required Python dependencies:

   pip install pandas pandas_datareader

Project Structure

project/
├── src/
│   └── utils.py            # Utility functions (e.g.,calculating inflation rates)
├── scripts/
│   └── fetch_us_cpi.py     # Main script to fetch and process CPI data
└── data/                   # Folder where results are saved

Usage

Change the path into PHBS-QPS-2024 Folder

Run the script from the scripts folder to fetch data and calculate inflation rates:

python scripts/fetch_us_cpi.py

This script will:

• Fetch Core CPI data (CPILFESL) from FRED starting from 2000-01-01.
• Calculate quarterly inflation rates using CPI percentage changes.
• Display the last 4 quarters of inflation rates in the terminal.
• Save the results to a CSV file in the data folder:

data/inflation_data.csv