Topsis-Sukhmanpreet-102317112 1.1.0

A command line python package to implement TOPSIS

Topsis-Sukhmanpreet-102317112

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What is TOPSIS?

TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) is a multi-criteria decision-making method. It ranks a set of alternatives by identifying the solution that is closest to the Ideal Best and farthest from the Ideal Worst.

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Installation

You can install this package via PyPi:

Bash pip install Topsis-Sukhmanpreet-102317112

Usage The package can be executed directly from the command line:

Bash python <program.py> <InputDataFile> <Weights> <Impacts> <OutputResultFileName>

Example Bash python topsis.py data.csv "1,1,1,1,1" "+,+,+,+,+" result.csv

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Input Requirements

File Format: The input file must be a .csv.

Structure: The file must contain three or more columns.

Data Type: From the 2nd column to the last, all values must be numeric.

Parameters:

• Weights: Must be numeric and separated by commas.
• Impacts: Must be either + (for maximization) or - (for minimization), separated by commas.
• Matching: The number of weights, impacts, and numeric columns must be identical.

Error Handling

• The package includes robust validation and will show appropriate messages for:
• Incorrect number of parameters.
• "File Not Found" exceptions.
• Non-numeric values in criteria columns.
• Mismatch between weights, impacts, and criteria count.

Output

• The result is saved as a new .csv file containing all original data plus two additional columns:

Topsis Score: The calculated performance score.

Rank: The final ranking of the alternatives.

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License

© 2026 Sukhmanpreet Singh

This repository is licensed under the MIT license. See LICENSE for details.