Topsis_main_102003634

for: Topsis_main_102003634 submitted by: Falguni Sharma Roll no: 102003634 Group: 3COE25

Topsis_102003634 is a Python library for solving Multiple Criteria Decision Making(MCDM) problems by Technique for Order of Preference by Similarity to Ideal Solution(TOPSIS). This package works on both string values as well as float values.

For attributes which are string type, the following table is used.

low                     1
below average           2
average                 3
good                    4
excellent               5

Installation

Use the package manager pip to install Topsis_102003634.

pip install Topsis_102003634

Usage

Enter csv filename followed by .csv extension, then enter the weights vector with vector values separated by commas, followed by the impacts vector with comma separated signs (+,-) both enclosed within "" and then at the end write the output file name.

Input

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>" <output file name>

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:

  TOPSIS RESULTS
  As per the given sample, the output file looks as given below :

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