| confidence |
conf |
Estimate confidence intervals for selected thawed parameters based on confidence method |
| covariance |
Estimate confidence intervals for selected thawed parameters based on covariance method |
| get_conf |
Return information regarding the confidence method. |
| get_covar |
Return settings or results for the covariance method. |
| get_int_proj |
Return the confidence data defining an interval projection plot |
| get_int_unc |
Return the confidence data defining an int_unc() plot |
| get_proj |
Return information regarding the projection method. |
| get_reg_proj |
Return the confidence data defining a region projection contour plot |
| get_reg_unc |
Return the confidence data defining a reg_unc() contour plot |
| int_proj |
Create a confidence plot of fit statistic vs. parameter value. |
| int_unc |
Create a confidence plot of fit statistic vs. parameter value. |
| projection |
Estimate confidence intervals for selected thawed parameters based on projection method |
| reg_proj |
Create a confidence contour of fit statistic vs. two thawed parameter values. |
| reg_unc |
Create a confidence contour of fit statistic vs. two thawed parameter values. |
| set_conf_opt |
Set the options for confidence |
| set_covar_opt |
Set the options for covariance |
| set_proj_opt |
Set the options for projection |
|
| contrib |
estimate_weighted_expmap |
Return the estimated exposure map value by weighting an ARF by a spectral model. |
| get_chart_spectrum |
Return the model spectrum in the form required by ChaRT |
| get_data_prof_prefs |
The plot preferences for radial or elliptical profiles of imaging data. |
| get_data_prof |
Return the data used to create the radial or elliptical profile of imaging data. |
| get_delchi_prof_prefs |
The plot preferences for radial or elliptical profiles of the residuals (data - model)/error to imaging data. |
| get_delchi_prof |
Return the data used to create the radial or elliptical profile of the residuals (data - model)/error to imaging data. |
| get_fit_prof |
Return the data used to create the radial or elliptical profile of fits to imaging data. |
| get_instmap_weights |
Return the model spectrum in the form required by the spectrumfile parameter of mkinstmap |
| get_model_prof_prefs |
The plot preferences for radial or elliptical profiles of the model (after any PSF convolution) for imaging data. |
| get_model_prof |
Return the data used to create the radial or elliptical profile of the source model (after any PSF convolution) for imaging data. |
| get_resid_prof_prefs |
The plot preferences for radial or elliptical profiles of the residuals (data - model) to imaging data. |
| get_resid_prof |
Return the data used to create the radial or elliptical profile of the residuals (data - model) to imaging data. |
| get_source_prof_prefs |
The plot preferences for radial or elliptical profiles of the source model for imaging data. |
| get_source_prof |
Return the data used to create the radial or elliptical profile of the source model (before any PSF convolution) for imaging data. |
| plot_chart_spectrum |
Plot up the model spectrum in the form required by ChaRT |
| plot_instmap_weights |
Plot up the model spectrum in the form required by mkinstmap |
| prof_data |
Plot a radial or elliptical profile of imaging data. |
| prof_delchi |
Plot a radial or elliptical profile of the residuals (data - model)/error to imaging data. |
| prof_fit_delchi |
Plot a radial or elliptical profile of the fit (data and model) and residuals (data-model)/error to imaging data. |
| prof_fit_resid |
Plot a radial or elliptical profile of the fit (data and model) and residuals (data-model) to imaging data. |
| prof_fit |
Plot a radial or elliptical profile of the fit (data and model) to imaging data. |
| prof_model |
Plot a radial or elliptical profile of the model (after any PSF convolution) for imaging data. |
| prof_resid |
Plot a radial or elliptical profile of the residuals (data - model) to imaging data. |
| prof_source |
Plot a radial or elliptical profile of the source model for imaging data. |
| save_chart_spectrum |
Write out the model spectrum in the form required by ChaRT |
| save_instmap_weights |
Write out the model spectrum in the form required by mkinstmap |
| sherpa_chart |
Create and view spectral files for ChaRT (CIAO contributed package). |
| sherpa_contrib |
Contributed CIAO routines for Sherpa. |
| sherpa_profiles |
Radial profiles of imaging data in Sherpa (CIAO contributed package). |
| sherpa_utils |
Utility routines for Sherpa (CIAO contributed package). |
|
| data |
copy_data |
Copy a data set by data ID to a new data ID (deep copy) |
| dataspace1d |
Create a blank 1D dataset |
| dataspace2d |
Create a blank 2D dataset |
| delete_data |
Delete a data set by ID |
| fake_pha |
Simulate a PHA dataset with faked counts using Poisson noise |
| fake |
Simulate a generic data set with a chosen model and add noise |
| get_areascal |
Return the source or background pixel fractional area scale |
| get_arf_plot |
Return the data and preferences defining an ARF plot |
| get_arf |
Return a source or background ARF by data set ID |
| get_axes |
Return the alternate grid of a data set |
| get_backscal |
Return the source or background extraction region area |
| get_bkg_plot |
Return the data and preferences defining a background plot. |
| get_bkg_scale |
Returns the complete background scaling factor |
| get_bkg |
Return the background data, ARF, RMF, or model. |
| get_coord |
Return the coordinate system of an image |
| get_counts |
Return the dependent variable array (e.g., counts) of a data set |
| get_data_plot |
Return a plot, contour, or image of the data, or the associated preferences |
| get_data |
Return details of a Sherpa data set by ID. |
| get_dep |
Return the dependent variable array (e.g., counts) of a data set |
| get_dims |
Return the length of the x-dimension of a data set |
| get_error |
Return the total errors on the counts of a data set |
| get_exposure |
Return the exposure time for a source or background data set |
| get_grouping |
Obtain the grouping flags from a data set |
| get_indep |
Return the independent variable array of a data set |
| get_quality |
Obtain the quality flags from a data set |
| get_rmf |
Return a source or background RMF by data set ID |
| get_specresp |
Return the effective area of a PHA spectrum |
| get_staterror |
Return the statistical errors on the counts of a data set |
| get_syserror |
Return the systematic errors on the counts of a data set |
| group |
Enable and specify the grouping settings of a spectral data set |
| load_arf |
Load a source or background ARF |
| load_arrays |
Load data from variables containing arrays. |
| load_ascii |
Load ASCII data |
| load_bkg_arf |
Load a background ARF |
| load_bkg_rmf |
Load a background RMF |
| load_bkg |
Load a PHA background spectrum |
| load_data |
Load 1D data from a file |
| load_grouping |
Load a grouping scheme from a FITS table or ASCII file |
| load_image |
Load an image |
| load_multi_arfs |
Load multiple ARFs |
| load_multi_rmfs |
Load multiple RMFs |
| load_pha |
Load PHA source spectra |
| load_quality |
Load quality flags from a FITS table or ASCII file |
| load_rmf |
Load a source or background RMF |
| load_staterror |
Load statistical errors |
| load_syserror |
Load systematic errors |
| load_table |
Load tabular data |
| pack_image |
Pack image data into an IMAGECrate |
| pack_pha |
Pack PHA data into a PHACrate |
| pack_table |
Pack tabular data into a TABLECrate |
| set_areascal |
Set the fractional area |
| set_arf |
Set an ARF dataset |
| set_backscal |
Set the extraction region area |
| set_bkg |
Set a background PHA dataset |
| set_coord |
Set the image coordinate system |
| set_counts |
Set the dependent variable (e.g. counts) of a dataset |
| set_data |
Set a source dataset |
| set_exposure |
Set the exposure time |
| set_grouping |
Apply user-defined grouping to a dataset |
| set_quality |
Apply user-defined quality flags to a data set |
| set_rmf |
Set an RMF dataset |
| set_staterror |
Set the statistical errors |
| set_syserror |
Set the systematic errors |
| subtract |
Perform background subtraction |
| ungroup |
Ungroup PHA data |
| unpack_arf |
Unpack an ARF from an ARFCrate |
| unpack_arrays |
Unpack arrays from a CrateData object |
| unpack_ascii |
Unpack ASCII data from a crate |
| unpack_bkg |
Unpack PHA data from a PHACrate |
| unpack_data |
Unpack a table data, ASCII data, or a spectrum from a crate |
| unpack_image |
Unpack image data from an IMAGECrate |
| unpack_pha |
Unpack PHA data from a PHACrate |
| unpack_rmf |
Unpack an RMF from a crate |
| unpack_table |
Unpack tabular data from a TABLECrate |
| unsubtract |
Undo background subtraction |
|
| filtering |
get_filter |
Return the filter of a data set |
| ignore2d_id |
Apply an exclude region filter to 2-D data by data set ID(s). |
| ignore2d |
Apply an exclude region filter to all 2-D data sets |
| ignore_bad |
Ignore bins according to quality flags |
| ignore_id |
Apply an exclude filter to 1-D data by data set ID |
| ignore |
Apply an exclude filter to all 1D data sets |
| load_filter |
Load filter from a FITS table, FITS image, or ASCII file |
| notice2d_id |
Apply an include filter to 2D data by dataset id |
| notice2d |
Apply an include filter to all 2D datasets |
| notice_id |
Apply an include filter to 1D data by dataset id |
| notice |
Apply an include filter to all 1D datasets |
| set_filter |
Apply user-defined filter to a data set |
| show_filter |
Display the filters applied to a dataset |
|
| fitting |
calc_stat_info |
Returns goodness-of-fit statistics associated with a Sherpa data set. |
| fit |
Perform a fit using current optimization method and fit statistic. |
| get_fit |
Return model fit information associated with a Sherpa data set. |
| get_stat_info |
Parses the goodness-of-fit statistic information returned by calc_stat_info() |
|
| info |
get_default_id |
Return the default data set ID in a Sherpa session. |
| list_bkg_ids |
List all background IDs associated with a data set. |
| list_data_ids |
List all data set IDs in a Sherpa session. |
| list_functions |
List all available Sherpa functions |
| list_model_ids |
List all current model IDs. |
| list_response_ids |
List all response IDs associated with a data set. |
| list_stats |
List all Sherpa fit statistics. |
| show_all |
Reports the current state of the Sherpa session |
| show_bkg_model |
Display the background convolved model |
| show_bkg_source |
Display the background unconvolved model |
| show_bkg |
Display PHA background data set information |
| show_conf |
Display the confidence information |
| show_covar |
Display the covariance information |
| show_data |
Display the data sets |
| show_fit |
Display the fit information |
| show_method |
Display the optimization method |
| show_model |
Display the convolved source model |
| show_proj |
Display the projection information |
| show_source |
Display the unconvolved source model |
| show_stat |
Display the fit statistic |
|
| methods |
get_draws |
Run the pyBLoCXS MCMC-based algorithm using the current sampler. |
| get_iter_method_name |
Return the name of the current iterative fitting method |
| get_iter_method_opt |
Return the value of the specified option for the current iterative fitting method |
| get_method |
Return information on the optimization method |
| gridsearch |
Grid searching optimization method |
| levmar |
Levenberg-Marquardt optimization method |
| list_iter_methods |
List all Sherpa iterative fitting methods. |
| list_methods |
List all Sherpa optimization methods. |
| moncar |
Monte Carlo optimization method |
| neldermead |
Nelder-Mead Simplex optimization method |
| pyblocxs |
MCMC-based algorithm for Bayesian Low-Count X-ray Spectral (BLoCXS) analysis |
| set_iter_method_opt |
Set the value of the specified option for the current iterative fitting method |
| set_iter_method |
Set the iterative fitting method |
| set_method_opt |
Set the options of the chosen optimization method |
| set_method |
Set the optimization method |
|
| modeling |
add_model |
Add a user-defined model class as a Sherpa model type |
| add_user_pars |
Add parameters to a user-defined model |
| clean |
Erase data and model settings in a Sherpa session |
| create_model_component |
Create a new model component |
| delete_bkg_model |
Delete a background model |
| delete_model_component |
Delete a model component |
| delete_model |
Delete a Sherpa model by model ID |
| freeze |
Freeze model parameters, so they do not vary during a fit. |
| get_model_autoassign_func |
Return the method for storing model identifiers |
| get_model_component_image |
Returns the 2D data and coordinate settings defining the convolved model component image |
| get_model_component_plot |
Returns the data and preferences defining the convolved model component plot |
| get_model_component |
Returns the parameters for the specified model component |
| get_model_plot |
Return a plot, contour, or image of a model, or the associated preferences |
| get_model |
Return the model, model parameters, or model type |
| get_num_par |
Returns the number of parameters (total, frozen, or thawed) in a model. |
| get_order_plot |
Return the data and preferences defining a plot of model spectral orders |
| get_par |
Returns a model parameter. |
| get_pileup_model |
Return the pileup model associated with a data set. |
| get_response |
Get the associated instrument response model of a PHA data set by data ID |
| get_source_component_image |
Returns the 2D data and coordinate settings defining the unconvolved model component image |
| get_source_component_plot |
Returns the data and preferences defining the unconvolved model component plot |
| get_source |
Return the unconvolved model associated with a Sherpa data set ID. |
| guess |
Estimate initial parameter values and ranges |
| image_model_component |
Sends image of the convolved model component to ds9. |
| image_model |
Send image of the model to ds9. |
| image_source_component |
Sends image of the unconvolved model component to ds9. |
| image_source |
Image the 2-D unconvolved model |
| integrate1d |
Helper function to control the integration of 1D non-XSpec model expressions |
| integrate |
Controlling the integration of model components |
| link |
Link a model parameter to another model parameter. |
| load_table_model |
Load data into a table model |
| load_template_model |
Load a set of template models |
| load_user_model |
Load a user-defined model |
| normal_sample |
Sample the current set of thawed parameters from a uni-variate or multi-variate normal distribution. |
| paramprompt |
Toggle parameter prompting for initial model values |
| reset |
Reset model parameter values after a fit |
| save_model |
Save the convolved source model to a FITS table or ASCII file |
| save_source |
Save the unconvolved source model to a FITS table or ASCII file |
| set_bkg_model |
Set a background model expression |
| set_full_model |
Set the complete convolved source and background model expressions to be used for fitting a data set |
| set_model_autoassign_func |
Define a method for storing model identifiers |
| set_par |
Set initial values for a model parameter |
| set_pileup_model |
Set a pileup model to be used in fitting a dataset |
| set_source |
Set the source model expression to be used for fitting a dataset |
| set_xsabund |
Set XSPEC solar abundance |
| set_xscosmo |
Set XSPEC cosmology settings (H0, q0, L0) |
| set_xsxsect |
Set XSPEC photoelectric cross-section |
| set_xsxset |
Set environment variables for XSPEC models |
| thaw |
Thaw model parameters so they vary during a fit |
| t_sample |
Sample the current set of thawed parameters from a Student's t-distribution. |
| uniform_sample |
Sample the current set of thawed parameters from a uniform distribution. |
| unlink |
Remove a link between model parameters |
|
| models |
absorptionedge |
Optical model of interstellar absorption. |
| absorptiongaussian |
A Gaussian model of an absorption feature. |
| absorptionlorentz |
A Lorentz model of an absorption feature. |
| absorptionvoigt |
A Voigt model of an absorption feature. |
| accretiondisk |
A model of emission due to an accretion disk. |
| atten |
Attenuation by ISM. |
| bbodyfreq |
Blackbody as a function of frequency. |
| bbody |
Blackbody as a function of energy. |
| beta1d |
1-D Lorentz model with a varying power law. |
| beta2d |
2-D Lorentz model with a varying power law. |
| blackbody |
Blackbody function |
| box1d |
1-D box function. |
| box2d |
2-D box function. |
| bpl1d |
Broken power law function. |
| bremsstrahlung |
Bremsstrahlung function |
| brokenpowerlaw |
Broken power-law function |
| ccm |
Interstellar extinction function |
| const1d |
1-D constant amplitude model. |
| const2d |
2-D constant amplitude model. |
| cos |
Cosine function. |
| delta1d |
1-D delta function. |
| delta2d |
2-D delta function. |
| dered |
Dereddening function. |
| devaucouleurs2d |
DeVaucouleurs profile. |
| edge |
Photoabsorption edge model. |
| emissiongaussian |
A Gaussian model of an emission feature. |
| emissionlorentz |
A Lorentz model of an emission feature. |
| emissionvoigt |
Voigt model of an emission feature |
| erfc |
A 1-D complementary error function. |
| erf |
A 1-D error function. |
| exp10 |
Exponential function, base 10. |
| exp |
Exponential function. |
| fm |
Fitzpatrick and Massa extinction curve |
| gauss1d |
1-D unnormalized Gaussian function. |
| gauss2d |
2-D unnormalized Gaussian function. |
| hubblereynolds |
Hubble-Reynolds profile. |
| jdpileup |
A CCD pileup model developed by John Davis of MIT. |
| linebroad |
Line-broadening profile. |
| list_models |
List all Sherpa models. |
| list_model_components |
List all models established in a Sherpa session. |
| lmc |
Extinction curve for the Large Magellanic Cloud |
| log10 |
Logarithm function, base 10. |
| logabsorption |
Logarithmic absorption model |
| logemission |
Logarithmic emission model |
| logparabola |
Log-parabolic function |
| log |
Natural logarithm function. |
| lorentz1d |
1-D normalized Lorentzian function. |
| lorentz2d |
2-D unnormalized Lorentzian function. |
| models |
Summary of Available Models |
| normbeta1d |
1-D normalized beta function. |
| normgauss1d |
1-D normalized Gaussian function. |
| normgauss2d |
2-D normalized Gaussian function. |
| opticalgaussian |
Gaussian model of an absorption feature |
| poisson |
Poisson function. |
| polynom1d |
1-D polynomial function. |
| polynom2d |
2-D polynomial function. |
| polynomial |
1-D polynomial function of order <= 5 |
| powerlaw |
Power law function |
| powlaw1d |
1-D power law. |
| recombination |
Model of continuum emission due to recombination |
| scale1d |
1-D constant amplitude model. |
| scale2d |
2-D constant amplitude model. |
| schechter |
Schechter function. |
| seaton |
Galactic extinction model |
| sin |
Sine function. |
| smc |
Extinction curve for the Small Magellanic Cloud |
| sm |
Galactic extinction curve |
| sqrt |
Square root function. |
| stephi1d |
1-D step function. |
| steplo1d |
1-D step function. |
| tablemodel |
Using an n-dimensional array of values as a model (table model). |
| tan |
Tangent function. |
| xgal |
Extragalactic extinction function |
| xsabsori |
Ionized absorber. XSpec model. |
| xsacisabs |
Decay in the ACIS quantum efficiency. XSpec model. |
| xsapec |
APEC thermal plasma model. XSpec model. |
| xsbapec |
APEC thermal plasma model with velocity broadening as a free parameter. XSpec model. |
| xsbbodyrad |
Blackbody spectrum with norm proportional to surface area. XSpec model. |
| xsbbody |
Blackbody spectrum. XSpec model. |
| xsbexrav |
E-folded broken power law reflected from neutral matter. XSpec model. |
| xsbexriv |
E-folded broken power law reflected from ionized matter. XSpec model. |
| xsbkn2pow |
Broken power law, two break energies. XSpec model. |
| xsbknpower |
Broken power law. XSpec model. |
| xsbmc |
Comptonization by relativistically moving matter. XSpec model. |
| xsbremss |
Thermal bremsstrahlung. XSpec model. |
| xsbvapec |
APEC thermal plasma model with variable abundances and velocity broadening as a free parameter. XSpec model. |
| xsbvvapec |
APEC thermal plasma model with variable abundances and velocity broadening as a free parameter. XSpec model. |
| xsc6mekl |
6th-order Chebyshev polynomial DEM using mekal. XSpec model. |
| xsc6pmekl |
Exponential of 6th-order Chebyshev polyn. DEM using mekal. XSpec model. |
| xsc6pvmkl |
Variable abundance version of c6pmekl. XSpec model. |
| xsc6vmekl |
Variable abundance version of c6mekl. XSpec model. |
| xscabs |
Compton scattering (non-relativistic). XSpec model. |
| xscemekl |
Multi-temperature mekal. XSpec model. |
| xscevmkl |
Multi-temperature vmeka. XSpec model. |
| xscflow |
Cooling flow model. XSpec model. |
| xscompbb |
Comptonized blackbody spectrum after Nishimura et al. (1986). XSpec model. |
| xscompls |
Comptonization spectrum after Lamb and Sanford (1979). XSpec model. |
| xscompps |
Comptonization, Poutanen and Svenson. XSpec model. |
| xscompst |
Comptonization spectrum after Sunyaev and Titarchuk (1980). XSpec model. |
| xscompth |
Component of Paolo Coppi's hybrid (thermal/non-thermal) hot plasma emission models. |
| xscomptt |
Comptonization spectrum after Titarchuk (1994). XSpec model. |
| xsconstant |
Energy-independent multiplicative factor. XSpec model. |
| xscplinear |
Non-physical piecewise-linear model for low count background spectra. XSpec model. |
| xscutoffpl |
Power law with high energy exponential cutoff. XSpec model. |
| xscyclabs |
Cyclotron absorption line. XSpec model. |
| xsdiskbb |
Multiple blackbody disk model. XSpec model. |
| xsdiskir |
Irradiated inner and outer disk. XSpec model. |
| xsdiskline |
Line emission from relativistic accretion disk. XSpec model. |
| xsdiskm |
Disk model with gas pressure viscosity. XSpec model. |
| xsdisko |
Modified blackbody disk model. XSpec model. |
| xsdiskpbb |
Accretion disk, power-law dependence for T(r). XSpec model. |
| xsdiskpn |
Accretion disk around a black hole. XSpec model. |
| xsdisk |
Disk model. XSpec model. |
| xsdust |
Dust scattering out of the beam. XSpec model. |
| xsedge |
Absorption edge. XSpec model. |
| xseplogpar |
Log-parabolic blazar model with nFn normalization. XSpec model. |
| xseqpair |
Component of Paolo Coppi's hybrid (thermal/non-thermal) hot plasma emission models |
| xseqtherm |
Component of Paolo Coppi's hybrid (thermal/non-thermal) hot plasma emission models |
| xsequil |
Equilibrium ionization collisional plasma model from Borkowski. XSpec model. |
| xsexpabs |
Low-energy exponential cutoff. XSpec model. |
| xsexpdec |
An exponential decay. XSpec model. |
| xsexpfac |
Exponential factor. XSpec model. |
| xsezdiskbb |
Multiple blackbody disk model with zero-torque inner boundary. XSpec model. |
| xsgabs |
A multiplicative gaussian absorption line. XSpec model. |
| xsgadem |
Plasma emission, multi-temperature with gaussian distribution of emission measure. XSpec model. |
| xsgaussian |
Simple gaussian line profile. XSpec model. |
| xsgnei |
Generalized single ionization NEI plasma model. XSpec model. |
| xsgrad |
GR accretion disk around a black hole. XSpec model. |
| xsgrbm |
Gamma-ray burst model. XSpec model. |
| xshighecut |
High energy cutoff. XSpec model. |
| xshrefl |
Simple reflection model good up to 15 keV. XSpec model. |
| xskerrbb |
Multi-temperature blackbody model for thin accretion disk around a Kerr black hole. XSpec model. |
| xskerrdisk |
Accretion disk line emission with BH spin as free parameter. XSpec model. |
| xskerrd |
Optically thick accretion disk around a Kerr black hole. XSpec model. |
| xslaor2 |
Accretion disk with broken-power law emissivity profile, black hole emission line. XSpec model. |
| xslaor |
Line from accretion disk around a black hole. XSpec model. |
| xslogpar |
Log-parabolic blazar model. XSpec model. |
| xslorentz |
Lorentzian line profile. XSpec model. |
| xsmekal |
Mewe-Kaastra-Liedahl thermal plasma (1995). XSpec model. |
| xsmeka |
Mewe-Gronenschild-Kaastra thermal plasma (1992). XSpec model. |
| xsmkcflow |
Cooling flow model based on mekal. XSpec model. |
| xsnei |
Simple nonequilibrium ionization plasma model. XSpec model. |
| xsnotch |
Notch line absorption. XSpec model. |
| xsnpshock |
Plane-parallel shock with ion and electron temperatures. XSpec model. |
| xsnsagrav |
NS H atmosphere model for different g. XSpec model. |
| xsnsatmos |
NS Hydrogen Atmosphere model with electron conduction and self-irradiation. XSpec model. |
| xsnsa |
Spectra in the X-ray range (0.05-10 keV) emitted from a hydrogen atmosphere of a neutron star. XSpec model. |
| xsnsmax |
Neutron Star Magnetic Atmosphere. XSpec model. |
| xsnteea |
Pair plasma model. XSpec model. |
| xsnthcomp |
Thermally comptonized continuum. XSpec model. |
| xsoptxagnf |
Color-temperature-corrected disc and energetically coupled Comptonization model for AGN. XSpec model. |
| xsoptxagn |
Color-temperature-corrected disc and energetically coupled Comptonization model for AGN. XSpec model. |
| xspcfabs |
Partial covering fraction absorption. XSpec model. |
| xspegpwrlw |
Power law with pegged normalization. XSpec model. |
| xspexmon |
Neutral Compton reflection with self-consistent Fe and Ni lines. XSpec model. |
| xspexrav |
Exponentially cutoff power law reflected from neutral matter. XSpec model. |
| xspexriv |
Exponentially cutoff power law reflected from ionized matter. XSpec model. |
| xsphabs |
Photo-electric absorption. XSpec model. |
| xsplabs |
Absorption model with power law dependence on energy. XSpec model. |
| xsplcabs |
Cutoff power law observed through dense, cold matter. XSpec model. |
| xsposm |
Positronium continuum. XSpec model. |
| xspowerlaw |
Simple photon power law. XSpec model. |
| xspshock |
Constant temperature, plane-parallel shock plasma model. XSpec model. |
| xspwab |
An extension of partial covering fraction absorption into a power-law distribution of covering fraction. XSpec model. |
| xsraymond |
Raymond-Smith thermal plasma. XSpec model. |
| xsredden |
IR/optical/UV extinction from Cardelli et al. (1989). XSpec model. |
| xsredge |
Recombination edge. XSpec model. |
| xsrefsch |
E-folded power law reflected from an ionized relativistic disk. XSpec model. |
| xssedov |
Sedov model with electron and ion temperatures. XSpec model. |
| xssirf |
Self-irradiated funnel. XSpec model. |
| xssmedge |
Smoothed absorption edge. XSpec model. |
| xsspexpcut |
Super-exponential cutoff absorption. XSpec model. |
| xsspline |
Spline multiplicative factor. XSpec model. |
| xssrcut |
Synchrotron radiation from cutoff electron distribution. XSpec model. |
| xssresc |
Synchrotron radiation from escape-limited electron distribution. XSpec model. |
| xssss_ice |
Einstein SSS ice absorption. XSpec model. |
| xsstep |
Step function convolved with gaussian. XSpec model. |
| xsswind1 |
Absorption by partially ionized material with large velocity shear. XSpec model. |
| xstbabs |
Calculates the absorption of X-rays by the ISM. XSpec model. |
| xstbgrain |
Calculates the absorption of X-rays by the ISM with variable hydrogen to H2 ratio and grain parameters. XSpec model. |
| xstbvarabs |
Calculates the absorption of X-rays by the ISM, allowing user to vary all abundances, depletion factors, and grain properties. XSpec model. |
| xsuvred |
UV reddening. XSpec model. |
| xsvapec |
APEC thermal plasma model with variable abundances. XSpec model. |
| xsvarabs |
Photoelectric absorption with variable abundances. XSpec model. |
| xsvbremss |
Thermal bremsstrahlung spectrum with variable H/He. XSpec model. |
| xsvequil |
Ionization equilibrium collisional plasma model with variable abundances. XSpec model. |
| xsvgadem |
Plasma emission, multi-temperature with gaussian distribution of emission measure. XSpec model. |
| xsvgnei |
Non-equilibrium ionization collisional plasma model with variable abundances. XSpec model. |
| xsvmcflow |
Cooling flow model based on vmekal. XSpec model. |
| xsvmekal |
M-K-L thermal plasma with variable abundances. XSpec model. |
| xsvmeka |
M-G-K thermal plasma with variable abundances. XSpec model. |
| xsvnei |
Non-equilibrium ionization collisional plasma model with variable abundances. XSpec model. |
| xsvnpshock |
Plane-parallel shock plasma model with separate ion and electron temperatures and variable abundances. XSpec model. |
| xsvphabs |
Photoelectric absorption with variable abundances. XSpec model. |
| xsvpshock |
Constant temperature, plane-parallel shock plasma model with variable abundances. XSpec model. |
| xsvraymond |
Raymond-Smith thermal plasma with variable abundances. XSpec model. |
| xsvsedov |
Sedov model with separate ion and electron temperatures and variable abundances. XSpec model. |
| xsvvapec |
APEC thermal plasma model with variable abundances. XSpec model. |
| xswabs |
Photoelectric absorption (Morrison and McCammon). XSpec model. |
| xswndabs |
Photoelectric absorption with low energy window. XSpec model. |
| xsxion |
Reflected spectra of a photo-ionized accretion disk or ring. XSpec model. |
| xszbbody |
Redshifted blackbody. XSpec model. |
| xszbremss |
Redshifted thermal bremsstrahlung. XSpec model. |
| xszdust |
Extinction by dust grains. XSpec model. |
| xszedge |
Redshifted absorption edge. XSpec model. |
| xszgauss |
Redshifted gaussian. XSpec model. |
| xszhighect |
Redshifted high energy cutoff. XSpec model. |
| xszigm |
UV/Optical attenuation by the intergalactic medium. |
| xszpcfabs |
Redshifted partial covering absorption. XSpec model. |
| xszphabs |
Redshifted photoelectric absorption. XSpec model. |
| xszpowerlw |
Redshifted power law. XSpec model. |
| xszredden |
Redshifted version of redden. XSpec model. |
| xszsmdust |
Extinction by dust grains in starburst galaxies. XSpec model. |
| xsztbabs |
Calculates the absorption of X-rays by the ISM for modeling redshifted absorption. Does not include a dust component. XSpec model. |
| xszvarabs |
Redshifted photoelectric absorption with variable abundances. XSpec model. |
| xszvfeabs |
Redshifted absorption with variable iron abundance. XSpec model. |
| xszvphabs |
Redshifted photoelectric absorption with variable abundances. XSpec model. |
| xszwabs |
Redshifted "Wisconsin absorption." XSpec model. |
| xszwndabs |
Redshifted photoelectric absorption with low energy window. XSpec model. |
| xszxipcf |
Partial covering absorption by partially ionized material. XSpec model. |
| xs |
XSpec model functions. |
|
| plotting |
get_energy_flux_hist |
Calculate a histogram of a simulated energy flux probability distribution |
| get_lrt_plot |
Access a histogram plot of likelihood ratio test results. |
| get_lrt_results |
Access the simulation results of the likelihood ratio test. |
| get_photon_flux_hist |
Calculate a histogram of a simulated photon flux probability distribution |
| get_pvalue_plot |
Access a histogram plot of likelihood ratio test results. |
| get_pvalue_results |
Access the simulation results of the likelihood ratio test. |
| get_split_plot |
Return plot attributes for multiple plots |
| plot_arf |
Plot an ARF |
| plot_bkg |
Plot information about background data |
| plot_cdf |
Plot a cumulative distribution function with lower, median, and upper quantiles. |
| plot_chisqr |
Plot the chi-squared statistic |
| plot_data |
Plot the dataset |
| plot_delchi |
Plot the delchi residuals of the fit: (data-model)/error |
| plot_energy_flux |
Plot the calculated energy flux distribution |
| plot_fit |
Plot the fit, fit plus delta chi, or fit plus residuals |
| plot_lrt |
Plot a histogram of likelihood ratio test results. |
| plot_model_component |
Plots individual convolved source model components |
| plot_model |
Plot the convolved source model |
| plot_order |
Plot the convolved source model by order |
| plot_pdf |
Plot a binned probability density function. |
| plot_photon_flux |
Plot the calculated photon flux distribution |
| plot_pvalue |
Plot a histogram of likelihood ratio test results. |
| plot_ratio |
Plot the (data/model) ratio |
| plot_resid |
Plot the residuals of the fit: (data - model) |
| plot_scatter |
Create an X,Y scatter plot. |
| plot_source_component |
Plots individual unconvolved source model components |
| plot_source |
Plot the unconvolved source model |
| plot_trace |
Create a trace plot of iteration number vs. sampled value. |
| plot |
Plot multiple objects (data, model, residuals, etc.) |
| set_xlinear |
Changes the plot X axis to use a linear scale. |
| set_xlog |
Changes the plot x axis to use a logarithmic scale. |
| set_ylinear |
Changes the plot Y axis to use a linear scale. |
| set_ylog |
Changes the plot Y axis to use a logarithmic scale. |
|
| psfs |
contour_kernel |
Create a contour plot of a PSF kernel |
| contour_psf |
Create a contour plot of a PSF |
| delete_psf |
Delete a PSF model |
| get_kernel |
Return kernel plot, image, and contour preferences. |
| get_psf |
Return PSF model data and plot, image, and contour preferences. |
| image_kernel |
Send a PSF kernel image to the imager (ds9). |
| image_psf |
Send a PSF image to the imager (ds9). |
| load_conv |
Load a 1D convolution kernel |
| load_psf |
Load a PSF model |
| plot_kernel |
Plot the PSF kernel |
| plot_psf |
Plot the PSF |
| set_psf |
Convolve the PSF model with the source model |
| show_kernel |
Display the PSF kernel |
| show_psf |
Display the PSF model |
|
| saving |
restore |
Restore a previous Sherpa session from a file |
| save_all |
Save all the information about the current session |
| save_arrays |
Save a list of arrays as columns to a FITS table or ASCII file |
| save_data |
Save a Sherpa data set to an ASCII file. |
| save_delchi |
Save the delta chi fit residuals to a FITS table or ASCII file |
| save_error |
Save total errors to a FITS table or ASCII file |
| save_filter |
Save filter to a FITS table or ASCII file |
| save_grouping |
Save grouping flags to a FITS table or ASCII file |
| save_image |
Save image data to a file |
| save_pha |
Save a Sherpa data set to a PHA file. |
| save_quality |
Save quality flags to a FITS table or ASCII file |
| save_resid |
Save the simple data-model difference residuals |
| save_staterror |
Save statistical errors to a FITS table or ASCII file |
| save_syserror |
Save systematic errors to a FITS table or ASCII file |
| save_table |
Save a Sherpa data set to a FITS or ASCII file. |
| save |
Save the current Sherpa session to a file |
| script |
Save every command typed in a Sherpa or ChIPS session to a file. |
|
| sherpa |
sherparc |
The .sherpa.rc file provides user-configuration options for Sherpa |
| sherpa |
Introduction to Sherpa, the CIAO modeling and fitting package |
|
| statistics |
cash |
A maximum likelihood function. |
| chi2constvar |
Chi-square statistic with constant variance computed from the counts data. |
| chi2datavar |
Chi-square statistic with variance computed from the data. |
| chi2gehrels |
Chi-square statistic with the Gehrels variance function. |
| chi2modvar |
Chi-square statistic with variance computed from model amplitudes. |
| chi2xspecvar |
Chi-square statistic with variance computed from data amplitudes. |
| chisquare |
About the chi-square statistic. |
| cstat |
A maximum likelihood function |
| get_chisqr_plot |
Return the data and preferences defining a chi^2 plot |
| get_delchi_plot |
Return the data and preferences defining a delta chi plot |
| get_prior |
Access the prior function associated with a Sherpa model parameter. |
| get_sampler |
Return information on the current pyBLoCXS sampler. |
| get_stat |
Return information on the fit statistic |
| leastsq |
Chi-square statistic with variance set to 1. |
| list_priors |
List thawed Sherpa model parameters with associated priors. |
| list_samplers |
List all available pyBLoCXS samplers. |
| load_user_stat |
Load a user-defined fit statistic |
| set_prior |
Define a prior function for a particular Sherpa model parameter. |
| set_sampler_opt |
Define sampler options for a pyBLoCXS chain. |
| set_sampler |
Set the current pyBLoCXS sampler. |
| set_stat |
Set the statistical method |
|
| utilities |
calc_chisqr |
Calculate the Chi Squared statistic contribution per bin |
| calc_data_sum2d |
Calculate the sum of observed image counts |
| calc_data_sum |
Calculate the sum of observed data counts |
| calc_energy_flux |
Calculate the unconvolved model energy flux |
| calc_ftest |
Calculate the significance using the F test |
| calc_kcorr |
Calculate the k correction for a spectral model. |
| calc_mlr |
Calculate the Maximum Likelihood Ratio test |
| calc_model_sum2d |
Calculate the convolved 2D model amplitudes |
| calc_model_sum |
Calculate the sum of convolved model counts |
| calc_photon_flux |
Calculate the unconvolved model photon flux |
| calc_source_sum2d |
Calculate the unconvolved 2D model amplitudes |
| calc_source_sum |
Calculate the sum of unconvolved model amplitudes |
| calc_stat |
Calculate the fit statistic by data set ID |
| eqwidth |
Calculate the equivalent width of an emission or absorption line. |
| gamma |
Calculate the Gamma function |
| get_analysis |
Return the current units setting for a PHA data set |
| get_rate |
Return the measured count rate of a data set |
| igamc |
Calculate the complement of the regularized incomplete Gamma function (upper) |
| igam |
Calculate the regularized incomplete Gamma function (lower) |
| incbet |
Calculate the incomplete Beta function |
| lgam |
Calculate the log of the Gamma function |
| sample_energy_flux |
Sample the energy flux distribution |
| sample_photon_flux |
Sample the photon flux distribution |
| set_analysis |
Set the units for spectral analysis |
| set_default_id |
Set the default Sherpa data id |
|
| visualization |
contour_data |
Open a contour plot of a data set in ChIPS |
| contour_fit_resid |
Create a contour plot of the fit and residuals |
| contour_fit |
Send a contour plot of the fit |
| contour_model |
Open a contour plot of a data set model in ChIPS |
| contour_ratio |
Open a contour plot of a data-to-model ratio in ChIPS |
| contour_resid |
Open a contour plot of data-minus-model residuals in ChIPS |
| contour_source |
Create a contour plot of the source |
| contour |
Open a contour plot in ChIPS |
| get_ratio |
Return information on the ratio of data and model. |
| get_resid |
Return information on a contour plot of the residuals of data and model. |
| histogram1d |
Create a 1D histogram from a binned grid and array of samples |
| histogram2d |
Create a 2D histogram from a pair of axes and a pair of sample arrays |
| image_close |
Close the imager window (i.e., exit ds9). |
| image_data |
Send image of 2-D data to ds9. |
| image_deleteframes |
Delete frames in the imager window (ds9). |
| image_fit |
Send image of the fit results to ds9. |
| image_getregion |
Returns a region description from ds9. |
| image_open |
Open the imager window (i.e., start ds9). |
| image_ratio |
Send image of the ratio (i.e., data/model) to ds9. |
| image_resid |
Send image of the residuals (i.e., data - model) to ds9. |
| image_setregion |
Sends a region description to ds9, where it is drawn in the current frame. |
| image_xpaget |
Retrieve data from ds9 using XPA. |
| image_xpaset |
Send data to ds9 using XPA. |
| rebin |
Rebin a histogram |
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