Candidate Elimination algorithm

Candidate Elimination algorithm by Aryadrj
If any error occurred .. then just comment below in comment box or contact me.
#Program->

 import pandas as pd
import numpy as np
data=pd.DataFrame(data=pd.read_csv("arya.csv"))
concepts=np.array(data.iloc[:,0:-1])
target=np.array(data.iloc[:,-1])
def learn(concepts,target):
    specific=concepts[0].copy()
    general=[["?" for i in range(len(specific))] for i in range(len(specific))]
    for i,h in enumerate(concepts):
        if target[i]=="Yes":
            for x in range(len(specific)):
                if h[x]!=specific[x]:
                    specific[x]='?'
                    general[x][x]='?'
                    #print(specific[x])
        if target[i]=="No":
            for x in range(len(specific)):
                if h[x]!=specific[x]:
                    general[x][x]=specific[x]
                else:
                    general[x][x]="?"
    indices=[i for i,val in enumerate(general) if val==['?','?','?','?','?','?']]
    for i in indices:
        general.remove(['?','?','?','?','?','?'])
        return specific,general # return function can return from function not loop
s_final,g_final=learn(concepts,target)
print("final s",s_final,sep="\n")
print("final g",g_final,sep="\n")




Output->
final s
['Sunny' 'Warm' '?' 'Strong' '?' '?']
final g
[['Sunny', '?', '?', '?', '?', '?'], ['?', 'Warm', '?', '?', '?', '?'], ['?', '?', '?', '?', '?', '?'], ['?', '?', '?', '?', '?', '?'], ['?', '?', '?', '?', '?', '?']]

 Dataset->
Sky,Airtemp,Humidity,Wind,Water,Forecast,WaterSport
Sunny,Warm,Normal,Strong,Warm,Same,Yes
Sunny,Warm,High,Strong,Warm,Same,Yes
Cloudy,Cold,High,Strong,Warm,Change,No
Sunny,Warm,High,Strong,Cool,Change,Yes


save the dataset as arya.csv


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