Loop does not work in python

[sandeep_ganga]

It works good for any number of elements we pass, since we have for loop added to run till range of input given "totalsize=np.size(reflectance)
for i in range(totalsize):"

And the statement, "if (reflectance[i]*10)%2 ==0:" is to read the input element upto first decimal as a number and check for even or odd, Also you can think of considering round or int(reflectance[i]) to check if even or odd as per requirement.

import numpy as np
import math


def find_nearest(array, value):
	array = np.asarray(array)
	idx = (np.abs(array - value)).argmin()
	#print(array[idx])
	return array[idx]
	

def clusterAnalysis(reflectance):
	totalsize=np.size(reflectance)# total size
	evenarray = []
	oddarray =[]	
	for i in range(totalsize):
		if ((reflectance[i]*10)%2 ==0):
		#if ((reflectance[i]*10)%2 ==0) and (reflectance[i] %2==0):      
			evenarray.append(reflectance[i])
		else:
			oddarray.append(reflectance[i])
	np_even = np.array(evenarray)
	np_odd = np.array(oddarray)
	mean_even=np.mean(np_even)#average of even numbers in cluster 2
	mean_odd=np.mean(np_odd)# average of odd numbers in cluster 1
	#print(totalsize)
	#print(np_even)
	#print(np_odd)
	#print(mean_even)
	#print(mean_odd)
	array=[]
	clusterAssigments=[]
	
	array.append(mean_even)
	array.append(mean_odd)
	#print(array)
	for i in range(totalsize):
		if find_nearest(array,reflectance[i]) == mean_even:
			clusterAssigments.append(1)
		else:
			clusterAssigments.append(2)
	clusterAssigment=np.array(clusterAssigments)
	
	return clusterAssigment
		 
print(clusterAnalysis(np.array([1.7, 1.6, 1.3, 1.3, 2.8, 1.4,2.8, 2.6, 1.6, 2.7,3.1])))

Output:
python test2.py
[2 2 2 2 1 2 1 1 2 1 1]

Best Regards,
Sandeep

GANGA SANDEEP KUMAR