| A | B | C | D | E |
|---|---|---|---|---|
| Command | Category | Description | ||
| abund | SETTING | Set the abundance table. | ||
| addcomp | MODEL | Add a component to the model. | ||
| addline | MODEL | Add lines to a model | ||
| arf | DATA | Read an auxiliary response file. | ||
| autosave | CONTROL | Periodically save the XSPEC status. | ||
| backgrnd | DATA | Reset the files to be used for background subtraction. | ||
| bayes | FIT | Set up for Bayesian inference. | ||
| chain | FIT | Run a Monte Carlo Markov Chain. | ||
| chatter | CONTROL | Control the verbosity of XSPEC. | ||
| corfile | DATA | Reset the files to be used for background correction. | ||
| cornorm | DATA | Reset the normalization to be used in correcting the background. | ||
| cosmo | SETTING | Set , , and | ||
| cpd | PLOT | Alias for setplot device. | ||
| data | DATA | Input one or more PHA data files. | ||
| delcomp | MODEL | Delete a component from the model. | ||
| diagrsp | DATA | Diagonalize the current response for an ideal response. | ||
| dummyrsp | MODEL | Create a dummy response, covering a given energy range. | ||
| editmod | MODEL | Add, delete, or replace one component in the model. | ||
| energies | MODEL | Specify new energy binning for model fluxes. | ||
| eqwidth | MODEL | Calculate a model component2̆019s equivalent width. | ||
| error (rerror) | FIT | Determine a single parameter confidence region. rerror is for response parameters. | ||
| exec | CONTROL | Execute a shell command from within XSPEC. | ||
| exit | CONTROL | Wind up any hardcopy plots and exit from XSPEC. | ||
| extend | MODEL | This is now obsolete. See energies command. | ||
| fakeit | DATA | Produce simulated data files for sensitivity studies. | ||
| fit | FIT | Find the best fit model parameters. | ||
| flux | MODEL | Calculate the current model’s flux over an energy range. | ||
| freeze (rfreeze) | FIT | Do not allow a model parameter to vary during the fit. rfreeze is for response parameters. | ||
| ftest | FIT | Calculate the F-statistic between two model fits | ||
| gain | MODEL | Perform a simple modification of the response gain. | ||
| goodness | FIT | Monte Carlo calculation of goodness-of-fit. | ||
| hardcopy | PLOT | Spool the current plot to the printer. | ||
| help | CONTROL | Obtain help on XSPEC commands. | ||
| identify | MODEL | List possible lines in the specified energy range. | ||
| ignore | DATA | Ignore a range of PHA channels in future fit operations. | ||
| initpackage | MODEL | Compile, build, and initialize a package of local models. | ||
| iplot | PLOT | As plot command but interactive using PLT. | ||
| lmod | MODEL | Load a package of local models. | ||
| log | CONTROL | Open the log file to save output. | ||
| lrt | SCRIPT | Likelihood ratio test between two models. | ||
| lumin | MODEL | Calculate the current model’s luminosity over a given rest frame energy range and redshift. | ||
| margin | FIT | MCMC probability distribution. | ||
| mdefine | MODEL | Define a simple model using an arithmetic expression. | ||
| method | SETTING | Set the minimization method. | ||
| model (rmodel) | MODEL | Define the model to be used when fitting the data. | ||
| modid | MODEL | Guess line IDs in the model. | ||
| multifake | SCRIPT | Perform many iterations of fakeit and save the results in a FITS file. | ||
| newpar (rnewpar) | MODEL | Modify the model parameters. rnewpar is for response parameters | ||
| notice | DATA | Restore a range of PHA channels for future operations. | ||
| parallel | CONTROL | Enable parallel processing for particular tasks in XSPEC. | ||
| plot | PLOT | Plot various information on the current plot device. | ||
| query | CONTROL | Switch on/off prompt to continue fitting. | ||
| quit | CONTROL | An alias for exit | ||
| renorm | FIT | Adjust the model norms, and/or control automatic renorming. | ||
| rescalecov | SCRIPT | Rescale the covariance matrix used in the proposal chain command. | ||
| response | DATA | Reset the files used to determine the detector responses. | ||
| save | CONTROL | Save aspects of the current state to a command file. | ||
| script | CONTROL | Open the script file to save all commands input. | ||
| setplot | PLOT | Modify the plot device and other values used by the plot routines. | ||
| show | CONTROL | Display current file and model information. | ||
| simftest | SCRIPT | Generate simulated datasets to estimate the F-test probability for adding a model component. | ||
| source | CONTROL | Execute a script file. | ||
| statistic | SETTING | Change the fit statistic in use. | ||
| steppar | FIT | Step through a range of parameter values; perform a fit at each step. | ||
| syscall | CONTROL | Run a shell command. | ||
| systematic | MODEL | Set the model systematic error. | ||
| tclout | CONTROL | write xspec data to a tcl variable | ||
| tcloutr | CONTROL | tclout with return value | ||
| thaw (rthaw) | FIT | Allow a model parameter to vary during the fit. rthaw is for response parameters | ||
| time | CONTROL | Display elapsed time and other statistical information. | ||
| uncertain | FIT | Alias for error | ||
| untie (runtie) | MODEL | Untie linked parameters. runtie is for response parameters. | ||
| version | CONTROL | Print XSPEC version and build date/time | ||
| weight | FIT | Change the weighting function used for chi-squared fits. | ||
| writefits | SCRIPT | Write information about the current fit and errors to a FITS file. | ||
| xsect | SETTING | Change the photoelectric absorption cross-sections in use. | ||
| xset | SETTING | Modify a number of XSPEC internal switches |
(echo:: @ ᯤ)