# adjust eff to match to obs
        parameters['eff'] = parameters['eff'] * dfss.lld.mean()/dfss.lldmod.mean()


        variable_parameters_mu_prior = np.array(
                                    [parameters[k] for k in variable_parameter_names])



        fit_ret = emcee_deconvolve_tm.fit_parameters_to_obs(t, observed_counts=dfss.lld.values,
             radon_conc=onemBq * 10 * np.ones(len(dfss)), # or, could be []
             internal_airt_history=dfss.airt.values,
             parameters=parameters,
             variable_parameter_names = variable_parameter_names,
             variable_parameters_mu_prior = variable_parameters_mu_prior,
             variable_parameters_sigma_prior = variable_parameters_sigma_prior,
             iterations=100,
             thin=1,
             keep_burn_in_samples=False,
             nthreads=1)


        (sampler, A, mean_est, low, high, parameters, map_radon_timeseries,
            rl_radon_timeseries, rltv_radon_timeseries) = fit_ret
        popt = A.mean(axis=0)
        pmap = A[0,:]
        print("(from bayes_fit...) pmap:", pmap)

        params_chain = A[:, parameters['nstate']:parameters['nhyper']+parameters['nstate']]
        radon_conc_chain = A[:, parameters['nhyper']+parameters['nstate']:]
                             expected_background*tres
            f, ax = plt.subplots()
            dfss[['lld','lldmod']].plot(ax=ax)
            ax.set_title(dfss.index.to_pydatetime()[0].date().strftime('%b %Y'))
            
            plt.show()
            
            # fit to obs

            if True:
                fit_ret = emcee_deconvolve_tm.fit_parameters_to_obs(t, observed_counts=dfss.lld.values,
                     radon_conc=[], #dfss.cal_radon_conc.values/lamrn*0.0,
                     internal_airt_history=dfss.airt.values,
                     parameters=parameters,
                     variable_parameter_names = variable_parameter_names,
                     variable_parameters_mu_prior = variable_parameters_mu_prior,
                     variable_parameters_sigma_prior = variable_parameters_sigma_prior,
                     iterations=2000,
                     thin=10,
                     keep_burn_in_samples=False,
                     nthreads=1)
                 
                (sampler, A, mean_est, low, high, parameters, map_radon_timeseries,
                    rl_radon_timeseries, rltv_radon_timeseries) = fit_ret
                popt = A.mean(axis=0)
                pmap = A[0,:]
                print("(from bayes_fit...) pmap:", pmap)
                
                params_chain = A[:, parameters['nstate']:parameters['nhyper']+parameters['nstate']]
                radon_conc_chain = A[:, parameters['nhyper']+parameters['nstate']:]