Topsis-Khushveer-102303327 0.0.2

TOPSIS implementation as a command line tool

Topsis-Khushveer-102303327

This package provides a command-line implementation of the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), a popular multi-criteria decision-making (MCDM) method.

The package allows users to rank multiple alternatives based on multiple criteria, user-defined weights, and impacts (benefit or cost).

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Features

• Command-line based TOPSIS implementation
• Supports any number of alternatives and criteria
• User-defined weights and impacts
• Automatic calculation of TOPSIS score and rank
• Output generated in CSV format

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Installation

Install the package using pip:

pip install Topsis-Khushveer-102303327

Usage

Run the TOPSIS program from the command line: topsis <input_file.csv> "" "" <output_file.csv>

Example

topsis data.csv "1,1,1,1,1" "+,+,-,+,+" result.csv

Input Format

Input CSV File

• The first column should contain the names of alternatives.
• The remaining columns should contain numeric values only.
• The file must contain at least three columns.

Weights

• Provided as a comma-separated list.
• Number of weights must be equal to the number of criteria.

Example:

"1,1,1,1,1"

Impacts

Provided as a comma-separated list. Each impact must be either:

• "+" for benefit criteria
• "-" for cost criteria

Example:

"+,+,-,+,+"

Output Format

The output CSV file contains:

• All original input columns
• Topsis Score for each alternative
• Rank (Rank 1 indicates the best alternative)

Error Handling

The program performs validation for:

• Incorrect number of command-line arguments
• File not found errors
• Non-numeric values in criteria columns
• Mismatch between number of weights, impacts, and criteria
• Invalid impact symbols

Author

Khushveer Kaur (102303327) Computer Engineering, TIET