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N-D user-specified amplitude model.
Integration OFF.
GRIDMODEL Parameters
| 1 | file | input filename |
| 2 | norm | normalization |
See "ahelp integrate" for further information about
source model integration.
With GRIDMODEL, an N-dimensional data array may be input
and used directly as a model. The data array must be of the same size
as the source data and have the same binning.
Prior to CIAO 3.0, it was necessary to use GRIDMODEL
when inputting an exposure map for use in spatial fitting; this is no
longer true. Example 2 compares the CIAO 3.0 and 2.3 syntax; see the
FEXPMAP command for further
information.
Input a data array as a model:
sherpa> PARAMPROMPT OFF
Model parameter prompting is off
sherpa> GRIDMODEL[gm]
sherpa> gm.file = "data/example1.dat"
sherpa> THAW gm.norm
sherpa> SOURCE = gm
In this example, the model component GRIDMODEL is established and assigned the name
gm.
Then, the input data array file is input using this model's file parameter.
This model component, thus defined using an input data array, can then be used just
as any other model component may be used. For example, here the model's normalization is
thawed and then the model is used to define a source model expression for
fitting.
Input an exposure map for use with a dataset (this no longer uses the
GRIDMODEL command):
sherpa> DATA data/data.fits
sherpa> PARAMPROMPT OFF
Model parameter prompting is off
sherpa> FEXPMAP[emap]
sherpa> emap.file = "data/data_expmap.fits"
sherpa> INSTRUMENT = emap
In this example, the instrument model component FEXPMAP
is established, the exposure map file is input using this model's file
parameter, and the instrument model stack is set for dataset number 1.
The CIAO 2.3 equivalent of this command is:
sherpa> DATA data/data.fits
sherpa> PARAMPROMPT OFF
Model parameter prompting is off
sherpa> GRIDMODEL[gm]
sherpa> gm.file = "data/data_expmap.fits"
sherpa> EXPMAP 1 = gm
- sherpa
-
atten,
bbody,
bbodyfreq,
beta1d,
beta2d,
box1d,
box2d,
bpl1d,
const1d,
const2d,
cos,
delta1d,
delta2d,
dered,
devaucouleurs,
edge,
erf,
erfc,
farf,
farf2d,
fpsf,
fpsf1d,
frmf,
gauss1d,
gauss2d,
hubble,
jdpileup,
linebroad,
lorentz1d,
lorentz2d,
models,
nbeta,
ngauss1d,
poisson,
polynom1d,
polynom2d,
powlaw1d,
ptsrc1d,
ptsrc2d,
rsp,
rsp2d,
schechter,
shexp,
shexp10,
shlog10,
shloge,
sin,
sqrt,
stephi1d,
steplo1d,
tan,
tpsf,
tpsf1d,
usermodel,
xs,
xsabsori,
xsacisabs,
xsapec,
xsbapec,
xsbbody,
xsbbodyrad,
xsbexrav,
xsbexriv,
xsbknpower,
xsbmc,
xsbremss,
xsbvapec,
xsc6mekl,
xsc6pmekl,
xsc6pvmkl,
xsc6vmekl,
xscabs,
xscemekl,
xscevmkl,
xscflow,
xscompbb,
xscompls,
xscompst,
xscomptt,
xsconstant,
xscutoffpl,
xscyclabs,
xsdisk,
xsdiskbb,
xsdiskline,
xsdiskm,
xsdisko,
xsdiskpn,
xsdust,
xsedge,
xsequil,
xsexpabs,
xsexpdec,
xsexpfac,
xsgabs,
xsgaussian,
xsgnei,
xsgrad,
xsgrbm,
xshighecut,
xshrefl,
xslaor,
xslorentz,
xsmeka,
xsmekal,
xsmkcflow,
xsnei,
xsnotch,
xsnpshock,
xsnsa,
xsnteea,
xspcfabs,
xspegpwrlw,
xspexrav,
xspexriv,
xsphabs,
xsplabs,
xsplcabs,
xsposm,
xspowerlaw,
xspshock,
xspwab,
xsraymond,
xsredden,
xsredge,
xsrefsch,
xssedov,
xssmedge,
xsspline,
xssrcut,
xssresc,
xssssice,
xsstep,
xstbabs,
xstbgrain,
xstbvarabs,
xsuvred,
xsvapec,
xsvarabs,
xsvbremss,
xsvequil,
xsvgnei,
xsvmcflow,
xsvmeka,
xsvmekal,
xsvnei,
xsvnpshock,
xsvphabs,
xsvpshock,
xsvraymond,
xsvsedov,
xswabs,
xswndabs,
xsxion,
xszbbody,
xszbremss,
xszedge,
xszgauss,
xszhighect,
xszpcfabs,
xszphabs,
xszpowerlw,
xsztbabs,
xszvarabs,
xszvfeabs,
xszvphabs,
xszwabs,
xszwndabs
- slang
-
usermodel
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