Simulation for an ordered hybrid choice model

[Hafsoah Ahmad]

Dear Professor Bierlaire,

I am trying to simulate a hybrid choice model with a single ordered choice variable.

After estimating the model, I tried the following code to simulate the choices: 

----------------

PROB = MonteCarlo(Elem(the_prob, Choice))
simulate = {'PROB': PROB}
the_biogeme = bio.BIOGEME(database, simulate)
the_biogeme.modelName = "model6.1"
betas = the_biogeme.freeBetaNames
results = res.bioResults(pickleFile='Model_6.pickle')
betaValues=results.getBetaValues()
simulatedValues = the_biogeme.simulate(betaValues)

This is the error I got:

TypeError                                 Traceback (most recent call last)
<ipython-input-149-ca44dd1e3edf> in <cell line: 0>()
----> 1 simulatedValues = the_biogeme.simulate(betaValues)

/usr/local/lib/python3.11/dist-packages/biogeme/biogeme.py in simulate(self, theBetaValues)
   1623                 raise excep.BiogemeError('\n'.join(listOfErrors))
   1624
-> 1625         result = self.theC.simulateSeveralFormulas(
   1626             formulas_signature,
   1627             betaValues,

src/cythonbiogeme/cpp/cythonbiogeme.pyx in cythonbiogeme.cythonbiogeme.pyBiogeme.simulateSeveralFormulas()

TypeError: simulateSeveralFormulas() takes exactly 6 positional arguments (5 given)

I got the same error when I tried to validate the model.

validation_data = database.split(slices=5)

validation_results = the_biogeme.validate(results, validation_data)

for slide in validation_results:

    print(

        f'Log likelihood for {slide.shape[0]} validation data: '

        f'{slide["Loglikelihood"].sum()}'

    )

TypeError                                 Traceback (most recent call last)
<ipython-input-190-688ad2f46bfc> in <cell line: 0>()
----> 1 validation_results = the_biogeme.validate(results, validation_data)
      2 for slide in validation_results:
      3     print(
      4         f'Log likelihood for {slide.shape[0]} validation data: '
      5         f'{slide["Loglikelihood"].sum()}'

________________________________________
1 frames
________________________________________
/usr/local/lib/python3.11/dist-packages/biogeme/biogeme.py in simulate(self, theBetaValues)
   1623                 raise excep.BiogemeError('\n'.join(listOfErrors))
   1624
-> 1625         result = self.theC.simulateSeveralFormulas(
   1626             formulas_signature,
   1627             betaValues,

src/cythonbiogeme/cpp/cythonbiogeme.pyx in cythonbiogeme.cythonbiogeme.pyBiogeme.simulateSeveralFormulas()

TypeError: simulateSeveralFormulas() takes exactly 6 positional arguments (5 given)

Kindly suggest how to proceed. Looking forward to your reply. Thank you.

Regards,

Hafsoah

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