Topsis-Ira-102017029 0.2

TOPSIS Package

for: TOPSIS submitted by: Ira Vashisht Roll no: 102017029 Group: COPC2

TOPSIS_Ira_102017029 is a Python library for (TOPSIS).The Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method determines the best solution from a set of alternatives with certain attributes. The best alternative is chosen based on its Euclidean distance from the ideal solution. TOPSIS is widely used in various multi-attribute decision making problems such as supply chain logistics, marketing management, environmental management or chemical engineering. Despite the extensive use of this method, there is no free and open-source software (FOSS) for TOPSIS with comprehensive post-analysis extensions

Installation

Use the package manager pip to install Topsis-Ira-102017029.

Usage

Enter csv filename followed by .csv extentsion, then enter the weights vector with vector values separated by commas, followed by the impacts vector with comma separated signs (+,-)

INPUT

And using this package in Python as :

import topsispy as tp
a =[
     [250, 16, 12, 5],
     [200, 16, 8, 3],
     [300, 32, 16, 4],
     [275, 32, 8, 4],
     [225, 16, 16, 2]
   ]
w = [0.25, 0.25, 0.25, 0.25]
sign = [-1, 1, 1, 1]
tp.topsis(a, w, sign)

The package can be used via commandline as :

$ python [package name] [path of csv as string] [list of weights as string] [list of sign as string]

Example

sample.csv

A csv file showing data for different mobile handsets having varying features.

Model	Storage space(in gb)	Camera(in MP)	Price(in $)	Looks(out of 5)
M1	16	12	250	5
M2	16	8	200	3
M3	32	16	300	4
M4	32	8	275	4
M5	16	16	225	2

weights vector = [ 0.25 , 0.25 , 0.25 , 0.25 ]

impacts vector = [ + , + , - , + ]

Output:

Model	Storage space(in gb)	Camera(in MP)	Price(in $)	Looks(out of 5)	Topsis Score	Rank
M1	16	12	250	5	0.534277	3
M2	16	8	200	3	0.308368	5
M3	32	16	300	4	0.691632	1
M4	32	8	275	4	0.534737	2
M5	16	16	225	2	0.401046	4