Topsis-Harsaihaj-123456 1.0.6

TOPSIS package for Multi-Criteria Decision Making

By Harsaihaj Singh (Roll No: 102303957)

This Python package implements the TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) method for solving Multi-Criteria Decision Making problems.

---

Installation

pip install Topsis-Harsaihaj-102303957

---

Input File Format

First column: Alternatives
Remaining columns: Numeric criteria

Example CSV:

Device	Battery	Performance	Cost	Weight
D1	4000	7	300	1.8
D2	4500	6	280	2.0
D3	4200	8	350	1.9
D4	3800	5	260	1.7
D5	4600	7	310	2.1

---

Weights and Impacts

Weights vector: 0.25,0.25,0.25,0.25

Impacts vector: +,+,-,-

---

Command Line Usage

topsis

Example:

topsis sample.csv "0.25,0.25,0.25,0.25" "+,+,-,-" result.csv

---

Output File Example

Result CSV will contain Topsis Score and Rank:

Device	Score	Rank
D1	0.562	2
D2	0.431	4
D3	0.688	1
D4	0.317	5
D5	0.501	3

Higher score means better alternative.

---

Error Handling

Program validates:

File existence
Numeric values
Correct weights count
Correct impacts
Invalid symbols

---

Conclusion

TOPSIS helps rank alternatives based on multiple criteria and is useful in decision-making problems.