# -*- coding: utf-8 -*-
"""
Created on Tue Jan  4 16:32:38 2022

@author: Sim
"""
import pandas as pd, numpy as np
import cronbach1 as ca

df = pd.read_csv(r'D:\HTEX\Pythonbk\codesdata\hospice.txt', 
                 sep='\s+', header=None)
nvar = df.shape[1]

alpha=ca.c_alpha(df)
print('Cronach a: ', alpha)

ralpha=ca.rm_alpha(df)
print('Remove item a: ', np.round(ralpha,3))

items = np.arange(nvar)[ralpha > alpha] + 1
print(items)

#---------------------------------------------------
zalpha = ca.z_alpha(df)
print('Standardized Cronach a: ', zalpha)

zralpha=ca.z_rm_alpha(df)
print('Remove item a: ', np.round(zralpha,3))

zitems = np.arange(nvar)[zralpha > zalpha] + 1
print(zitems)