| |
|
Topic |
|
Context |
|
Summary |
| A |
|
abs |
|
slangrtl |
|
Compute the absolute value of a number |
|
acisreadcorr |
|
tools |
|
Flag and relocate out-of-time CCD events |
|
acisspec |
|
tools |
|
(1) Extract source and/or background ACIS imaging spectra for both point-like and extended sources; (2) coadd ACIS spectra; (3) build weighted ARFs and RMFs. |
|
acis_bkgrnd_lookup |
|
tools |
|
Find the matching ACIS "blank-sky" dataset for an observation |
|
acis_build_badpix |
|
tools |
|
Create an observation-specific bad-pixel file |
|
acis_classify_hotpix |
|
tools |
|
Determine whether a suspicious pixel is hot or affected by an afterglow. |
|
acis_detect_afterglow |
|
tools |
|
Identify and flag cosmic ray afterglows (L1) |
|
acis_expmap |
|
tools |
|
Generate ACIS exposure maps for celldetect recursive blocking |
|
acis_fef_lookup |
|
tools |
|
Find the FITS Embedded Function file for use by mkrmf |
|
acis_find_hotpix |
|
tools |
|
Identify pixels that have an unusually large (or small) number of events. |
|
acis_process_events |
|
tools |
|
Produce or update TIME, coordinates, PI, GRADE, and STATUS information in ACIS event files |
|
acis_run_hotpix |
|
tools |
|
Identify and flag "hot" pixels and cosmic-ray "afterglows." |
|
acis_set_ardlib |
|
tools |
|
Sets the bad pixel paremeters of the ardlib file to the given file |
|
aconvolve |
|
tools |
|
Convolve an N-dimensional image with a kernel |
|
acosh |
|
slangrtl |
|
Compute the inverse cosh of an number |
|
acos |
|
slangrtl |
|
Compute the arc-cosine of an number |
|
acrosscorr |
|
tools |
|
Cross-correlate two N-dimensional images or autocorrelate an image |
|
add_grating_orders |
|
tools |
|
Add positive and negative diffraction orders of a grating PHA spectra and the corresponding ARFs |
|
add_grating_spectra |
|
tools |
|
Add two, source and background, grating PHA spectra, averages the corresponding ARFs, and group the coadded spectrum. |
|
ahelp |
|
ahelp |
|
Access the CIAO help documentation. |
|
analysis-menu |
|
gui |
|
The "Analysis" menu in CIAO GUIs allows users to run command-line tools. |
|
analysis |
|
sherpa |
|
Specifies whether to analyze datasets in energy, wavelength, or channel space. |
|
analyze_ltcrv |
|
tools |
|
analyze_ltcrv.sl - An algorithm for cleaning lightcurves |
|
apowerspectrum |
|
tools |
|
Compute the power spectrum of an N-dimensional input array, or from two columns (independent/dependent variable) in an input file |
|
append_to_slang_load_path |
|
slangrtl |
|
Append a directory to the load-path |
|
apropos |
|
varmm |
|
S-Lang function to find defined symbols (functions and variables) |
|
ardlib |
|
calibration |
|
Analysis Reference Data Library |
|
arestore |
|
tools |
|
restore image resolution using deconvolution techniques |
|
array_info |
|
slangrtl |
|
Returns information about an array |
|
array_map |
|
slangrtl |
|
Apply a function to each element of an array |
|
array_sort |
|
slangrtl |
|
Sort an array |
|
array_to_bstring |
|
slangrtl |
|
Convert an array to a binary string |
|
ascii2fits |
|
tools |
|
Convert simple ASCII files to FITS format files |
|
asinh |
|
slangrtl |
|
Compute the inverse-sinh of an number |
|
asin |
|
slangrtl |
|
Compute the arc-sine of an number |
|
asphist |
|
tools |
|
Bin the aspect solution into a 3D histogram of duration vs pointing offset and roll offset. |
|
assoc_delete_key |
|
slangrtl |
|
Delete a key from an Associative Array |
|
assoc_get_keys |
|
slangrtl |
|
Return all the key names of an Associative Array |
|
assoc_get_values |
|
slangrtl |
|
Return all the values of an Associative Array |
|
assoc_key_exists |
|
slangrtl |
|
Check to see whether a key exists in an Associative Array |
|
atanh |
|
slangrtl |
|
Compute the inverse-tanh of an number |
|
atan |
|
slangrtl |
|
Compute the arc-tangent of an number |
|
atof |
|
slangrtl |
|
Convert a string to a double precision number |
|
atten |
|
sherpa |
|
Attenuation by ISM. Integration OFF. |
|
autoest |
|
sherpa |
|
Automatic estimation of initial parameter values in Sherpa models |
|
autoload |
|
slangrtl |
|
Load a function from a file |
|
autoname |
|
concept |
|
Autonaming is a feature available in various tools for automatically naming an output file based upon the name of an input file. |
|
axbary |
|
tools |
|
Apply barycentric corrections to event times, GTIs, and header values. |
|
axes |
|
chips |
|
Specifies the appearance of the bounding box surrounding a drawing area. The command AXIS is equivalent. |
|
| B |
|
background |
|
sherpa |
|
Defines a model expression to be used for the background. The command BG is an abbreviated equivalent. |
|
back |
|
sherpa |
|
Inputs the contents of one or more background data files. |
|
batch |
|
chips |
|
Turns on/off use of a plotting device. |
|
bayes |
|
sherpa |
|
A Bayesian maximum likelihood function. |
|
bbodyfreq |
|
sherpa |
|
Blackbody as a function of frequency. Integration ON. |
|
bbody |
|
sherpa |
|
Blackbody as a function of energy. Integration ON. |
|
berrors |
|
sherpa |
|
Defines an expression to be used to specify the statistical errors for background data. The commands BACKERRORS and BSTATERRORS are equivalent. |
|
beta1d |
|
sherpa |
|
1-D surface brightness beta-model. Integration OFF |
|
beta2d |
|
sherpa |
|
2-D Lorentzian with varying power law. Integration OFF. The LORPOW2D model is equivalent. |
|
box1d |
|
sherpa |
|
1-D box function. Integration OFF. |
|
box2d |
|
sherpa |
|
2-D box function. Integration OFF. |
|
bpl1d |
|
sherpa |
|
Broken power law function. Integration ON. |
|
browse |
|
chips |
|
Launches the CIAO file-browsing GUI, Prism. The command PRISM is equivalent. |
|
bstring_to_array |
|
slangrtl |
|
Convert a binary string to an array of characters |
|
bstrlen |
|
slangrtl |
|
Get the length of a binary string |
|
bsyserrors |
|
sherpa |
|
Defines an expression or file to be used to specify the systematic errors for background data. |
|
bye |
|
sherpa |
|
Terminates the Sherpa program. Other equivalent termination commands are EXIT and QUIT. |
|
byte_compile_file |
|
slangrtl |
|
Compile a file to byte-code for faster loading. |
|
| C |
|
calCreateInfo |
|
caldb |
|
Create a CALDB structure for use in other CALDB calls. |
|
calc_kcorr |
|
sherpa |
|
Calculate the k correction for a spectral model, redshift, and energy range. |
|
caldb |
|
calibration |
|
CALibration DataBase (CALDB) |
|
caldb |
|
modules |
|
The S-Lang interface to the CXC CALDB library |
|
calFindFile |
|
caldb |
|
Query the Calibration Database for a file |
|
calGetData |
|
caldb |
|
Returns the code name stored in the CALDB structure. |
|
calGetDate |
|
caldb |
|
Returns the observation start date stored in the CALDB structure. |
|
calGetDetector |
|
caldb |
|
Returns the name of the detector stored in the CALDB structure. |
|
calGetError |
|
caldb |
|
Returns the severity of the last CALDB error. |
|
calGetFilter |
|
caldb |
|
Returns the name of the filter stored in the CALDB structure. |
|
calGetInstrument |
|
caldb |
|
Returns the name of the instrument stored in the CALDB structure. |
|
calGetQuery |
|
caldb |
|
Returns the value of the query expression stored in the CALDB structure. |
|
calGetTelescope |
|
caldb |
|
Returns the name of the telescope stored in the CALDB structure. |
|
calGetTime |
|
caldb |
|
Returns the observation start time stored in the CALDB structure. |
|
calPrintInfo |
|
caldb |
|
Display the contents of the CALDB structure |
|
calSetData |
|
caldb |
|
Sets the data product code name for the next CALDB query. |
|
calSetDate |
|
caldb |
|
Sets the date for the next CALDB query. |
|
calSetDetector |
|
caldb |
|
Sets the name of the detector in the CALDB structure. |
|
calSetExpression |
|
caldb |
|
Sets the boundary condition(s) for the CALDB query. |
|
calSetFilter |
|
caldb |
|
Sets the filter to be used in a CALDB query. |
|
calSetInstrument |
|
caldb |
|
Sets the name of the instrument in the CALDB structure. |
|
calSetTelescope |
|
caldb |
|
Sets the name of the telescope in the CALDB structure. |
|
calSetTime |
|
caldb |
|
Sets the time for the next CALDB query. |
|
cash |
|
sherpa |
|
A maximum likelihood function. |
|
cast |
|
sherpa |
|
[REMOVED AS OF CIAO 3.0.2] Casts a dataset to single or double precision. |
|
celldetect |
|
tools |
|
Use a "sliding cell" to search for sources |
|
chart_spectrum |
|
tools |
|
chart_spectrum.sl - Create a source spectrum for input to ChaRT |
|
char |
|
slangrtl |
|
Convert an ascii value into a string |
|
chdir |
|
slangrtl |
|
Change the current working directory. |
|
chicvar |
|
sherpa |
|
Chi-square statistic with constant variance computed from the counts data. |
|
chidvar |
|
sherpa |
|
Chi-square statistic with variance computed from the data. |
|
chigehrels |
|
sherpa |
|
Chi-square statistic with the Gehrels variance function. |
|
chimvar |
|
sherpa |
|
Chi-square statistic with variance computed from model amplitudes. |
|
chiprimini |
|
sherpa |
|
Chi-square statistic with Primini variance function. |
|
chips_auto_redraw |
|
chips |
|
Set the automatic redrawing mode. |
|
chips_clear |
|
chips |
|
Removes all plotting objects, creating a new blank drawing area. |
|
chips_color_name |
|
chips |
|
Converts a color number to a string. |
|
chips_color_value |
|
chips |
|
Converts the name of a color to its numeric value. |
|
chips_eval |
|
chips |
|
Call ChIPS commands from S-Lang |
|
chips_get_pane |
|
chips |
|
Get the current pane/drawing area. |
|
chips_get_xrange |
|
chips |
|
Get the upper and/or lower x-axis limits of the plot |
|
chips_get_xscale |
|
chips |
|
Get the x-axis scale |
|
chips_get_yrange |
|
chips |
|
Get the upper and/or lower y-axis limits of the plot |
|
chips_get_yscale |
|
chips |
|
Get the y-axis scale |
|
chips_get_zrange |
|
chips |
|
Get the upper and/or lower z-axis limits of the plot |
|
chips_get_zscale |
|
chips |
|
Get the z-axis scale |
|
chips_label |
|
chips |
|
Adds a label to a drawing area. |
|
chips_line |
|
chips |
|
Adds a line to a drawing area. |
|
chips_pickpoints |
|
chips |
|
Read 1 or more cursor positions from ChIPS. |
|
chips_redraw |
|
chips |
|
Redraws all plotting objects. |
|
chips_set_pane |
|
chips |
|
Set the current pane/drawing area. |
|
chips_set_xrange |
|
chips |
|
Set the upper and/or lower x-axis limits of the plot |
|
chips_set_xscale |
|
chips |
|
Set the x-axis scale |
|
chips_set_yrange |
|
chips |
|
Set the upper and/or lower y-axis limits of the plot |
|
chips_set_yscale |
|
chips |
|
Set the y-axis scale |
|
chips_set_zrange |
|
chips |
|
Set the upper and/or lower z-axis limits of the plot |
|
chips_set_zscale |
|
chips |
|
Set the z-axis scale |
|
chips_split |
|
chips |
|
Creates multiple drawing areas. |
|
chips_version |
|
chips |
|
Report the version of ChIPS as a number or string. |
|
chips |
|
chips |
|
Introduction to ChIPS, CIAO's plotting package. |
|
chisquare |
|
sherpa |
|
Chi-square statistic. |
|
chmod |
|
slangrtl |
|
Change the mode of a file |
|
chown |
|
slangrtl |
|
Change the owner of a file |
|
ciao.par |
|
gui |
|
Parameter file to configure options for CIAO applications. |
|
ciaoshmem |
|
gui |
|
Provides information on and configuration of CIAO sessions. |
|
ciao |
|
concept |
|
Chandra Interactive Analysis of Observations |
|
clearerr |
|
slangrtl |
|
Clear the error of a file stream |
|
clearstack |
|
varmm |
|
S-Lang function to clear the stack. |
|
clear |
|
chips |
|
Removes all plotting objects and creates a new blank drawing area. |
|
close |
|
sherpa |
|
Closes the image display window. |
|
close |
|
slangrtl |
|
Close an open file descriptor |
|
colden |
|
proposaltools |
|
Interactive program to evaluate the neutral hydrogen column density at a given direction on the sky |
|
colorsys |
|
chips |
|
Sets the color system for hardcopy plots. |
|
color_image |
|
tools |
|
Run dmimg2jpg to make a color JPEG image |
|
compute_errors |
|
sherpa |
|
Module function to estimate errors for an array of data |
|
compute_statistic |
|
sherpa |
|
Module function to estimate a statistic given arrays of data, model amplitudes, and errors, etc. |
|
configure |
|
concept |
|
Configuration and customization of CIAO |
|
Conj |
|
slangrtl |
|
Compute the complex conjugate of a number |
|
const1d |
|
sherpa |
|
1-D constant amplitude model. Integration ON. |
|
const2d |
|
sherpa |
|
2-D constant amplitude model. Integration ON. |
|
contour |
|
chips |
|
Adds a contour plot to a drawing area. |
|
coords |
|
chandra |
|
Coordinate systems used in Chandra analysis |
|
coord |
|
sherpa |
|
Specifies the coordinate system for use in fits to 2-D images. |
|
cosh |
|
slangrtl |
|
Compute the hyperbolic cosine of an number |
|
cos |
|
sherpa |
|
Cosine function. Integration OFF. |
|
cos |
|
slangrtl |
|
Compute the cosine of an number |
|
covariance |
|
sherpa |
|
Computes covariance matrices, and provides an estimate of confidence intervals for selected thawed parameters. |
|
cplot |
|
sherpa |
|
Causes the specified 2-D data to be displayed, with a contour plot, via ChIPS. |
|
createparamset |
|
sherpa |
|
To be especially efficient, one may establish and assign a name to a model component, as well as set model parameters and their ranges, all at one time using a single command: |
|
create_delimited_string |
|
slangrtl |
|
Concatenate strings using a delimiter |
|
create_model |
|
sherpa |
|
Module functions to instantiate new source or instrument models. |
|
create |
|
sherpa |
|
Establishes a model component and its parameters, for use in the current Sherpa session. |
|
csmooth |
|
tools |
|
Adaptively smooth a 2-D image |
|
cstat |
|
sherpa |
|
A maximum likelihood function. |
|
ctime |
|
slangrtl |
|
Convert a calendar time to a string |
|
cumsum |
|
slangrtl |
|
Compute the cumulative sum of an array |
|
current_namespace |
|
slangrtl |
|
Get the name of the current namespace |
|
curve |
|
chips |
|
Plots a curve or change its attributes (PLOT is equivalent). |
|
c |
|
chips |
|
Defines the current curve. |
|
| D |
|
dataspace |
|
sherpa |
|
Creates a data grid on which models may be evaluated. |
|
data |
|
sherpa |
|
Inputs the contents of one or more source data files. |
|
dates |
|
proposaltools |
|
DATES is an interactive calendar and time conversion tool. |
|
dcounts |
|
sherpa |
|
Calculates the sum of observed counts data for source or background datasets. |
|
define_case |
|
slangrtl |
|
Define upper-lower case conversion. |
|
delete |
|
chips |
|
Deletes plotting objects (drawing area, curves, lines and labels) from a plot. |
|
delta1d |
|
sherpa |
|
1-D delta function. Integration ON. |
|
delta2d |
|
sherpa |
|
2-D delta function. Integration ON. |
|
dered |
|
sherpa |
|
Dereddening function. Integration OFF. |
|
describe |
|
guide |
|
Describe is a GUIDE command that prints out detailed information about either one or two energy levels and, if two levels are input, any atomic transitions between them. |
|
destreak |
|
tools |
|
Remove streak events from ACIS data |
|
devaucouleurs |
|
sherpa |
|
DeVaucouleurs profile. Integration OFF. |
|
display |
|
chips |
|
Causes the specified 2-D data to be displayed, using the default imaging display tool (i.e. ds9) |
|
dither_region |
|
tools |
|
Compute fraction of region area that covers chips |
|
dmappend |
|
tools |
|
Append multiple blocks/extensions to an existing output file. |
|
dmarfadd |
|
tools |
|
Add multiple ARF files together, weighting by exposure. |
|
dmbinning |
|
dm |
|
The CIAO binning syntax |
|
dmcols |
|
dm |
|
Selecting columns in a table |
|
dmcontour |
|
tools |
|
Make contour regions from a 2-D image |
|
dmcoords |
|
tools |
|
Convert between Chandra coordinate systems |
|
dmcopy |
|
tools |
|
Filter and bin tables and images. |
|
dmdiff |
|
tools |
|
Compare values in two FITS files. |
|
dmextract |
|
tools |
|
Make a histogram table file (e.g. PHA file, lightcurve file) from a table column. Generate count histogram on supplied regions for a spatial table or image file. |
|
dmfiltering |
|
dm |
|
The CIAO filtering syntax |
|
dmfilth |
|
tools |
|
Replace pixel values in source regions of an image with values interpolated from surrounding background regions |
|
dmgroupreg |
|
tools |
|
Translates DS9 regions and groups to CIAO format. |
|
dmgroup |
|
tools |
|
Group a specified column in a table with various options |
|
dmgti |
|
tools |
|
Create a Good Time Interval from limits placed on time-based files (event and Mission Time Line files). |
|
dmhedit |
|
tools |
|
Edit datamodel file headers |
|
dmhistory |
|
tools |
|
Extracts the tool history from the file header |
|
dmimages |
|
dm |
|
Images in CIAO: logical and physical coordinate systems |
|
dmimfiltering |
|
dm |
|
The CIAO filtering syntax for images |
|
dmimg2jpg |
|
tools |
|
Make a color JPEG image (or EPS) from three image files |
|
dmimgcalc |
|
tools |
|
Perform arithmetic on images |
|
dmimghist |
|
tools |
|
Create a histogram of the pixel values in a 2-D image |
|
dmimgpick |
|
tools |
|
Maps image values to rows in a table |
|
dmimgthresh |
|
tools |
|
Set low (or high) intensity or exposure regions of an image to a constant value. |
|
dmintro |
|
dm |
|
The Data Model library underlies most of the CXC tools. |
|
dmjoin |
|
tools |
|
Join two files whose sampling is different. |
|
dmkeypar |
|
tools |
|
Retrieve information about a keyword from an input file |
|
dmlist |
|
tools |
|
List contents or structure of a file. |
|
dmmakepar |
|
tools |
|
Write header keywords to a parameter file |
|
dmmakereg |
|
tools |
|
Convert a region string to a CXC FITS region file |
|
dmmerge |
|
tools |
|
Merge two or more compatible tables (e.g. event files) into one. |
|
dmopt |
|
dm |
|
Controlling data model internal options |
|
dmpaste |
|
tools |
|
Add new columns to a table. |
|
dmreadpar |
|
tools |
|
Create header keywords from a parameter file |
|
dmregions |
|
dm |
|
CIAO region filtering syntax |
|
dmregrid |
|
tools |
|
Rebin a stack of 2-dimensional images. |
|
dmsort |
|
tools |
|
Sort a table. |
|
dmstat |
|
tools |
|
Compute statistics for images and columns in tables. |
|
dmsyntax |
|
dm |
|
The Data Model syntax for filtering and binning files. |
|
dmtcalc |
|
tools |
|
Modify and create columns in a table |
|
dmtype2split |
|
tools |
|
Create a type 1 output file for specified rows of a type 2 file. |
|
dm |
|
dm |
|
The CIAO Data Model |
|
dollarsign |
|
sherpa |
|
Must precede any Unix command issued within Sherpa or ChIPS. |
|
double |
|
slangrtl |
|
Convert an object to double precision |
|
drawarea |
|
chips |
|
Specifies the location for a new drawing area. |
|
ds9_center |
|
ds9 |
|
Center image at position |
|
ds9_clear |
|
ds9 |
|
Erase a DS9 frame |
|
ds9_get_array |
|
ds9 |
|
Retrieve displayed image |
|
ds9_get_cmap |
|
ds9 |
|
Retrieve colormap from DS9 |
|
ds9_get_coords |
|
ds9 |
|
Retrieve position of next mouseclick within any frame |
|
ds9_get_crosshair |
|
ds9 |
|
Retrieve position of crosshair cursor |
|
ds9_get_file |
|
ds9 |
|
Retrieve name of file being displayed |
|
ds9_get_regions |
|
ds9 |
|
Retrieve descriptions of regions applied to a displayed image |
|
ds9_get_scale |
|
ds9 |
|
Retrieve image scale |
|
ds9_get_zoom |
|
ds9 |
|
Retrieve zoom level |
|
ds9_launch |
|
ds9 |
|
Establish connection to a DS9 process |
|
ds9_pan |
|
ds9 |
|
Shift image position |
|
ds9_put_array |
|
ds9 |
|
Visualize an image pixel array |
|
ds9_put_crosshair |
|
ds9 |
|
Set position of crosshair cursor |
|
ds9_put_file |
|
ds9 |
|
Load FITS file |
|
ds9_put_regions |
|
ds9 |
|
Request that region descriptions be applied to the displayed image |
|
ds9_put_wcs_keys |
|
ds9 |
|
Apply WCS to displayed image, using pre-formatted FITS keywords |
|
ds9_put_wcs_struct |
|
ds9 |
|
Apply WCS to displayed image, using structure field values |
|
ds9_put_wcs |
|
ds9 |
|
Apply WCS to displayed image, using raw numeric or string values |
|
ds9_quit |
|
ds9 |
|
Terminate a DS9 process |
|
ds9_set_cmap |
|
ds9 |
|
Change colormap of DS9 |
|
ds9_set_scale |
|
ds9 |
|
Change image scale |
|
ds9_set_zoom |
|
ds9 |
|
Zoom in or out |
|
ds9_view |
|
ds9 |
|
Launch DS9 with file or image pixel array |
|
ds9 |
|
modules |
|
A simple S-Lang interface to ds9 |
|
dup_fd |
|
slangrtl |
|
Duplicate a file descriptor |
|
dup_struct |
|
varmm |
|
S-Lang function to duplicate a structured variable. |
|
dup |
|
slangrtl |
|
Duplicate the value at the top of the stack |
|
d |
|
chips |
|
Defines the current drawing area. |
|
| E |
|
echo |
|
sherpa |
|
Turns on/off reporting of user keystrokes. |
|
edge |
|
sherpa |
|
Photoabsorption edge model. Integration OFF. |
|
eflux |
|
sherpa |
|
Calculates the unconvolved energy flux for source or background datasets. |
|
eqwidth |
|
sherpa |
|
Computes the equivalent width of an emission or absorption line in source or background data. |
|
erase |
|
sherpa |
|
Erases user inputs and settings, and/or model components. |
|
erfc |
|
sherpa |
|
A 1-D complementary error function. Integration OFF. |
|
erf |
|
sherpa |
|
A 1-D error function. Integration OFF. |
|
errno_string |
|
slangrtl |
|
Return a string describing an errno. |
|
errno |
|
slangrtl |
|
Error code set by system functions. |
|
errors |
|
sherpa |
|
Defines an expression to be used to specify the statistical errors for source data. |
|
error |
|
slangrtl |
|
Generate an error condition |
|
errs |
|
chips |
|
Specifies the appearance of errorbars. |
|
evalfile |
|
slangrtl |
|
Interpret a file containing S-Lang code. |
|
eval |
|
slangrtl |
|
Interpret a string as S-Lang code |
|
eventdef |
|
chandra |
|
Column definition in Chandra event files |
|
exch |
|
slangrtl |
|
Exchange two items on the stack |
|
exit |
|
chips |
|
Terminates the program. The command QUIT is equivalent. |
|
exp |
|
slangrtl |
|
Compute the exponential of an number |
|
extract_element |
|
slangrtl |
|
Extract the nth element of a string with delimiters |
|
| F |
|
fakeit |
|
sherpa |
|
Creates a simulated 1-D dataset. |
|
farf2d |
|
sherpa |
|
A 2-D file-based ancillary response model. Alternate names include FEXPMAP and FEXPMAP2D. |
|
farf |
|
sherpa |
|
A 1-D file-based ancillary response model. |
|
fclose |
|
slangrtl |
|
Close a file |
|
fdopen |
|
slangrtl |
|
Convert a FD_Type file descriptor to a stdio File_Type object |
|
feffile |
|
sherpa |
|
Specifies the Fits Embedded Function (FEF) file whose contents will be displayed with FEFPLOT. |
|
fefplot |
|
sherpa |
|
Plots an instrument response stored in a Fits Embedded Function (FEF) file that is read in via FEFFILE. |
|
feof |
|
slangrtl |
|
Get the end-of-file status |
|
ferror |
|
slangrtl |
|
Determine the error status of an open file descriptor |
|
fflush |
|
slangrtl |
|
Flush an output stream |
|
fgetslines |
|
slangrtl |
|
Read all the lines from an open file |
|
fgets |
|
slangrtl |
|
Read a line from a file. |
|
fileno |
|
slangrtl |
|
Convert a stdio File_Type object to a FD_Type descriptor |
|
filtwin |
|
gui |
|
GUI to perform interactive filtering of data |
|
firstlook |
|
gui |
|
GUI to allow an efficient means of accessing Chandra data products |
|
fits_bitpix |
|
varmm |
|
Converts S-Lang variables and data types to FITS BITPIX values. |
|
fit |
|
sherpa |
|
Initiates fitting (optimization). The command [B]RUN is equivalent. |
|
flux |
|
sherpa |
|
Calculates the unconvolved photon flux for source or background datasets. |
|
font |
|
chips |
|
Changes the default global font. |
|
fopen |
|
slangrtl |
|
Open a file |
|
fprintf |
|
slangrtl |
|
Create and write a formatted string to a file |
|
fpsf1d |
|
sherpa |
|
A 1-D file-based PSF instrument model. |
|
fpsf |
|
sherpa |
|
A 2-D file-based PSF instrument model. |
|
fputs |
|
slangrtl |
|
Write a string to an open stream |
|
fread |
|
slangrtl |
|
Read binary data from a file |
|
freeze |
|
sherpa |
|
Prohibits model parameter(s) from varying. |
|
frmf |
|
sherpa |
|
A 1-D file-based response matrix model. |
|
fseek |
|
slangrtl |
|
Reposition a stream |
|
ftell |
|
slangrtl |
|
Obtain the current position in an open stream |
|
ftest |
|
sherpa |
|
Computes significance using the F test. |
|
fullgarf |
|
tools |
|
Create a grating arf for a particular order and grating for a given observation. |
|
fwrite |
|
slangrtl |
|
Write binary data to a file |
|
| G |
|
gauss1d |
|
sherpa |
|
1-D unnormalized Gaussian function. Integration ON. |
|
gauss2d |
|
sherpa |
|
2-D unnormalized Gaussian function. Integration OFF. |
|
getcwd |
|
slangrtl |
|
Get the current working directory |
|
getegid |
|
slangrtl |
|
Get the effective group id |
|
getenv |
|
slangrtl |
|
Get the value of an environment variable |
|
geteuid |
|
slangrtl |
|
Get the effective user-id of the current process |
|
getgid |
|
slangrtl |
|
Get the group id |
|
getpid |
|
slangrtl |
|
Get the current process id |
|
getppid |
|
slangrtl |
|
Get the parent process id |
|
getuid |
|
slangrtl |
|
Get the user-id of the current process |
|
getx |
|
sherpa |
|
Assigns x-axis values taken from a plot to model parameters. |
|
gety |
|
sherpa |
|
Assigns y-axis values taken from a plot to model parameters. |
|
get_analysis |
|
sherpa |
|
Module function to retrieve the current analysis setting. |
|
get_arf_axes |
|
sherpa |
|
Module functions to retrieve the energy/wavelength grid of an ARF associated with source and background data |
|
get_axes |
|
sherpa |
|
Module functions to get the energy/wavelength/channel grid of source and background datasets. |
|
get_coord |
|
sherpa |
|
Module function to retrieve the current coordinate setting for 2-D image data. |
|
get_data |
|
sherpa |
|
Module functions to get the amplitudes of source and background datasets. |
|
get_dcounts_sum |
|
sherpa |
|
Calculates the sum of observed counts in source and background datasets using module functions in Sherpa. |
|
get_defined_models |
|
sherpa |
|
Module functions that return lists of defined Sherpa source and instrument models |
|
get_dir |
|
sherpa |
|
Module function to retrieve the current path. |
|
get_doc_string_from_file |
|
slangrtl |
|
Read documentation from a file |
|
get_eflux |
|
sherpa |
|
Calculate the energy flux (unconvolved) for source or background datasets using module functions in Sherpa. |
|
get_energy_axes |
|
sherpa |
|
Module functions to retrieve the energy grids of source and background datasets. |
|
get_eqwidth |
|
sherpa |
|
Module functions that compute the equivalent width of an emission or absorption line in source or background data. |
|
get_errors |
|
sherpa |
|
Module functions to get the error estimates of source and background datasets. |
|
get_filename |
|
sherpa |
|
Module functions to retrieve filenames associated with a dataset. |
|
get_filter_expr |
|
sherpa |
|
Module function to retrieve the strings describing filters applied to source and background datasets. |
|
get_filter |
|
sherpa |
|
Module functions to get the filter arrays associated with source and background datasets. |
|
get_fit |
|
sherpa |
|
Module functions to get information about the quality of a fit. |
|
get_flux2d |
|
sherpa |
|
Module functions for computing fluxes/summing counts in 2-D images. |
|
get_fluxed_spectrum |
|
sherpa |
|
Retrieve a fluxed spectrum (counts divided by ARF) using module functions in Sherpa. |
|
get_flux_str |
|
sherpa |
|
Retrieves a default structure for use with get_pflux(), etc. |
|
get_ftest |
|
sherpa |
|
Module function that returns the statistical significance computed with the F test |
|
get_groups |
|
sherpa |
|
Module functions for retrieving a grouping or quality array from source and background files. |
|
get_import_module_path |
|
slangrtl |
|
Get the search path for dynamically loadable objects |
|
get_lfactorial |
|
sherpa |
|
Module function to compute the natural logarithm of the factorial of the input quantity |
|
get_mcounts_sum |
|
sherpa |
|
Module functions for computing the sum of convolved model counts in source and background datasets. |
|
get_metadata |
|
sherpa |
|
Module functions to retrieve metadata associated with source and background datasets. |
|
get_method_expr |
|
sherpa |
|
Module function to retrieve the name of the current optimization method. |
|
get_models |
|
sherpa |
|
Module functions that return lists of available source and instrument models |
|
get_model_params |
|
sherpa |
|
Access to the default model and instrument parameters of Sherpa from S-Lang. |
|
get_num_par |
|
sherpa |
|
Module functions that report the total number of parameters for all defined models, including instrument models |
|
get_paramestint |
|
sherpa |
|
Module functions to retrieve the value and statistic arrays from the most recent run of a parameter estimation method |
|
get_paramestlim |
|
sherpa |
|
Module functions to determine confidence intervals, and retrieve the parameter bounds. |
|
get_paramestreg |
|
sherpa |
|
Module functions to retrieve the value and statistic arrays from the most recent run of a parameter estimation method |
|
get_paramest |
|
sherpa |
|
Module functions to retrieve the output of parameter estimation methods. |
|
get_par |
|
sherpa |
|
Module function for getting model parameter values, etc. |
|
get_pflux |
|
sherpa |
|
get_flux(), get_pflux(), and get_bpflux() calculate the photon flux (unconvolved) for source and background datasets using the module functions in Sherpa. |
|
get_photon_axes |
|
sherpa |
|
Module functions to retrieve photon-space grids over which models are evaluated. |
|
get_photon_energy_axes |
|
sherpa |
|
Module functions to retrieve photon-space energy grids over which models are evaluated. |
|
get_photon_wave_axes |
|
sherpa |
|
Module functions to retrieve photon-space wavelength grids over which models are evaluated. |
|
get_qvalue |
|
sherpa |
|
Module function that returns the statistical significance computed as a q-value. |
|
get_raw_axes |
|
sherpa |
|
Module functions to retrieve the raw channel number grids of source and background datasets. |
|
get_record |
|
sherpa |
|
Module function to return a record of model parameter values at the end of each iteration of the fitting process. |
|
get_sky_limits |
|
tools |
|
Find the region covered by an image in sky coordinates |
|
get_slang_load_path |
|
slangrtl |
|
Get the value of the interpreter's load-path |
|
get_source_components |
|
sherpa |
|
Return, as an array, the names of the model components in the source expression of a dataset. |
|
get_source |
|
sherpa |
|
Module functions to retrieve predicted source and background model photon amplitudes. |
|
get_src_region |
|
tools |
|
Outputs regions that have counts higher than background |
|
get_stackexpr |
|
sherpa |
|
Module functions to retrieve a model stack expression. |
|
get_statistic |
|
sherpa |
|
Module functions to get the current value of the statistic comparing source and background data and model values. |
|
get_stats |
|
sherpa |
|
Module functions to retrieve predicted model counts, statistics, residuals, sigma residuals, and ratios from source and background datasets. |
|
get_stat_expr |
|
sherpa |
|
Module function to retrieve the name of the current statistic. |
|
get_struct_field_names |
|
slangrtl |
|
Retrieve the field names associated with a structure |
|
get_struct_field |
|
slangrtl |
|
Get the value associated with a structure field |
|
get_syserrors |
|
sherpa |
|
Module functions to get the systematic error estimates of source and background datasets. |
|
get_verbose |
|
sherpa |
|
Module function to display Sherpa's current verbosity setting. |
|
get_wave_axes |
|
sherpa |
|
Module functions to retrieve the wavelength grids of source and background datasets. |
|
get_weights |
|
sherpa |
|
Module functions to get the statistical weights of source and background datasets. |
|
get |
|
sherpa |
|
Summary of Sherpa/S-Lang module functions that retrieve settings or data. |
|
gmtime |
|
slangrtl |
|
Break down a time in seconds to GMT timezone |
|
goodness |
|
sherpa |
|
Reports information on the goodness-of-fit. |
|
grid-powell |
|
sherpa |
|
A grid search utilizing the Powell method at each grid point. |
|
gridmodel |
|
sherpa |
|
N-D user-specified amplitude model. Integration OFF. |
|
grids |
|
chips |
|
Adds grid lines to a drawing area and/or changes grid attributes. |
|
grid |
|
sherpa |
|
A grid search of parameter space, with no minimization. |
|
groupByCounts |
|
sherpa |
|
Group a dataset by number of counts or signal-to-noise within Sherpa. |
|
group |
|
modules |
|
The S-Lang interface to the CXC grouping library |
|
group |
|
sherpa |
|
Causes Sherpa to apply a read-in bin grouping scheme to source or background data. |
|
grpAdaptiveSnr |
|
group |
|
Adaptively group an array by signal to noise. |
|
grpAdaptive |
|
group |
|
Group an array by the number of counts per group using an adaptive scheme. |
|
grpBinFile |
|
group |
|
Group an array using the grouping applied to another dataset. |
|
grpBinWidth |
|
group |
|
Group an array into a set of equal-width groups (by group width). |
|
grpBin |
|
group |
|
Group an array using low and high boundaries. |
|
grpGetChansPerGroup |
|
group |
|
Calculate the number of channels (elements) in each group. |
|
grpGetGroupSum |
|
group |
|
Apply the supplied grouping to an array. |
|
grpGetGrpNum |
|
group |
|
Calculate the group number for each element in the array. |
|
grpMaxSlope |
|
group |
|
Group an array so that its absolute gradient is above a user-defined limit. |
|
grpMinSlope |
|
group |
|
Group an array so that its absolute gradient is below a user-defined limit. |
|
grpNumBins |
|
group |
|
Group an array into a set of equal-width groups (by number of groups). |
|
grpNumCounts |
|
group |
|
Group an array by the number of counts per group. |
|
grpSnr |
|
group |
|
Group an array by signal to noise. |
|
guess |
|
sherpa |
|
Estimates initial parameter values and ranges, based on input data. |
|
guide |
|
chandra |
|
Grating User Interactive Data Extension (GUIDE) |
|
gui |
|
gui |
|
Graphical User Interface (GUI) |
|
| H |
|
hrc_build_badpix |
|
tools |
|
Create observation-specific bad pixel file for HRC |
|
hrc_dtfstats |
|
tools |
|
Calculate statistics from hrc_calc_dead_time and a |
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