Esempio n. 1
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def lnlike3_dip(theta3_dip,x,y,yerr):
    theta2params3_dip(theta3_dip)
    # Compute model and chi2 on the fly
    nx   = x.size
    chi2 = 0.
    for ix in np.arange(x.size):
        mod   = gl.dT_model3_dip(x[ix],Cp,Gl3_dip,Fg)
        sig   = gl.dT_noise(x[ix],Fg)
        chi2 += ((y[ix]-mod)/sig)**2
    return -chi2/2.
Esempio n. 2
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def lnlike_trough(theta,x,y,yerr):
    theta2params_trough(theta)
    # Compute model and chi2 on the fly
    nx   = x.size
    chi2 = 0.
    for ix in np.arange(x.size):
        mod   = gl.dT_model_trough(x[ix],Cp,Glt,Fg)
        sig   = gl.dT_noise(x[ix],Fg)
        chi2 += ((y[ix]-mod)/sig)**2
    return -chi2/2.
Esempio n. 3
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            noise_exp = np.zeros(nx,dtype='float64')
            noise_ran = np.zeros(nx,dtype='float64')
            fg_exp = np.zeros(nx,dtype='float64')
            # for full spectrum input
            sigT = np.zeros(nz,dtype='float64')
            dT_mod = np.zeros(nz,dtype='float64')
            #
            # set up directory
            odir = 'AmpC_'+str(ampC_array[iamp])+'_zC_'+str(zC_array[izc])+'_dzC_'+str(dzC_array[idzc])
            outputdir = fdir+odir
            if not os.path.isdir(outputdir):
                os.mkdir(outputdir)
            #
            for iz in np.arange(nx):
                nu = x[iz]
                noise_ran[iz] =  gl.dT_noise(nu,Fg)*np.random.randn(1)
                y[iz] = gl.dT_model3(nu,Cp,Gl3,Fg) + noise_ran[iz]
                yerr[iz] = gl.dT_noise(nu,Fg)
                sig_exp[iz] = gl.dT_global3(nu,Cp,Gl3)
                noise_exp[iz] = gl.dT_noise(nu,Fg)
                fg_exp[iz] = gl.dT_fg(nu,Fg)
            for iz in np.arange(nz):
                nu = nu_arr[iz]
                sigT[iz]   = gl.dT_noise(nu,Fg)
                dT_mod[iz] = gl.dT_global3(nu,Cp,Gl3)
            Gl3['Amp_D']=Amp_D_default
            Gl3['z_D'] = z_D_default

            # preparing for MCMC
            # Initial input model parameters
            # === First choice for each walker (10% scatter from the truth)