Topsis-Sameer-102316089

A Python package that implements TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) — a multi-criteria decision-making method.

Installation

pip install Topsis-Sameer-102316089

Usage

Run from the command line:

topsis <InputDataFile> <Weights> <Impacts> <OutputResultFileName>

Example

topsis data.csv "1,1,1,2" "+,+,-,+" output.csv

Parameters

Input File Format

• The input file must contain three or more columns.
• The first column is the name/label of each alternative (e.g., M1, M2, …).
• Column 2 onwards must contain numeric values only.

Sample Input (data.csv)

Output File Format

The output file contains all original columns plus two new columns:

Sample Output (output.csv)

Input Validations

The program checks for the following:

1. Correct number of parameters — exactly 4 arguments required
2. File not found — shows an appropriate error message
3. Minimum columns — input file must have ≥ 3 columns
4. Numeric values — columns 2 onwards must be numeric
5. Count match — number of weights, impacts, and criteria columns must be equal
6. Valid impacts — impacts must be + or - only
7. Comma-separated — weights and impacts must be separated by commas

License

MIT © Sameer