Loop does not work in python

[Ola92]

Yes, sorry my mistake.

import numpy as np
import math
def clusterAnalysis(reflectance):
    ref=np.size(reflectance)
    even1=np.any(ref %2==0)
    uneven1=np.any(ref%2>0)
    even2="2"
    uneven2="1"
    even3=(np.mean(even1))
    uneven3=(np.mean(uneven1))
    while ref==even1:
        clusterAssigments=even2
    if ref==uneven1:
        clusterAssigments=uneven1
    else:ref==even1 and ref==uneven3
    clusterAssigments=even2
    return clusterAssigments

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Please..anyone? I have been trying to figure this out for last 2 days and changed the code multiple times...