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example.py
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example.py
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from edt_functions import *
# Example 1: A simple D-efficient designs
# Define attributes
# Each attribute is a dictionary that contains:
#
# Key Type Description
# 'name' String Attribute name
# 'levels' List Attribute levels
# 'coding' Integer Coding. 1 = Quantitative / 2 = Dummy
# 'par' List Prior parameters
Att1 = { 'name': 'A',
'levels': [0,1,2],
'coding': 2,
'par': [-0.1,-0.2]}
Att2 = { 'name': 'B',
'levels': [0,1,2],
'coding': 2,
'par': [0.1,0.15]}
Att3 = { 'name': 'C',
'levels': [0,1],
'coding': 2,
'par': [-0.1]}
Att4 = { 'name': 'D',
'levels': [0,1],
'coding': 2,
'par': [-0.4]}
Att5 = { 'name': 'E',
'levels': [0,1],
'coding': 2,
'par': [-0.1]}
Att6 = { 'name': 'F',
'levels': [0,1],
'coding': 2,
'par': [-0.4]}
Att7 = { 'name': 'G',
'levels': [100,250,500,750],
'coding': 1,
'par': [-0.004]}
# Merge all attributes in a single list
Attlist = [Att1,Att2,Att3,Att4,Att5,Att6,Att7]
# Set number of alternatives per choice set and number of choice sets
nalternatives = 2
nchoicesit = 60
# Options
options = { 'optout': 1,
'asc': [],
'ascpar': [-1],
'seed': 666,
# 'iterlim': 0,
# 'noimprovlim': 0,
'timelim': 1,
'nblocks': 10}
design = effdesign(Attlist,nalternatives,nchoicesit,options)
to_export = design['optimal.des']
to_export.to_excel("efficient_design.xlsx",index=False)