Sfrescox commands

The inputs to SFresco are
Card 1: name of search_file

Lines 2: repeatedly one of (in all upper or all lower case):
EX: exit
Q: query status of search variables
V: query status of unfixed search variables
CHA: query status of changed search variables
CHI: list $\chi^2$ status by dataset
SET var val: set variable number var to value val.
FIX var: fix variable number var (set step=0).
FXWID : fix all R-matrix widths variables.
FXRPE : fix all R-matrix pole energy variables.
FXPBG : fix all pole energies variables with 'BG' in their name.
FXBG : fix all variables with 'BG' in their name.
FXNOR : fix all dataset norm variables (kind=5)
FXSHF : fix all dataset energy shift variables (kind=6)
FREE : free all R-matrix energies and widths variables.
STEP var step: unfix variable number var with step step.
SCAN var val1 val2 step: scan variable number var from value val1 to value val2 in steps of step.
SHOW: list all datasets with current predictions and $\chi$ values.
PLOT plotfile: write file (default: search.plot) for reading by xmgr, xvgr, with data and theoretical curves.
DONE search_file: write single new search file (default: done.fresco) for rereading by SFRESCO as a combination of FRESCO input_file and current parameter values. Data specifications are however not included.
LINE plotfile: write file (default: search.plot) for reading by xmgr, xvgr, with theoretical curves only.
READ file: read plot output file for further searches, if not:
READ snapfile: if the input string file contains the string 'snap', read to the end of previous snap output snapfile, for further searches.
ELIM emin emax: restrict data scans to this energy range for plots and $\chi^2$ sums
POLES emin emax: vary only R-matrix poles in this energy range (others are fixed)
ESCAN emin emax estep: scan lab. energy in incident channel, to give phase shifts in fort.71, fusion & reaction cross sections in fort.40, and S-factors in fort.35 and 75. This is to look for/at resonances, or at behaviour out of data's energy range, not for $\chi^2$ fitting.

MIN: call minuit interactively, to read from stdin. Return to SFresco by minuit command end.

 
A example of this search_file input is:

'6hep.in' '6hep.out' 7 1
 &variable kind=1 name='V' kp=1 pline=2 col=1 /
 &variable kind=1 name='r0' kp=1 pline=2 col=2 valmin=.7 valmax=2.0/
 &variable kind=1 name='a' kp=1 pline=2 col=3 /
 &variable kind=1 name='W' kp=1 pline=2 col=4 /
 &variable kind=1 name='rw' kp=1 pline=2 col=5 valmin=.7 valmax=2.0/
 &variable kind=1 name='aw' kp=1 pline=2 col=6 /
 &variable kind=5 name='exptnorm' /
 &data type=0 iscale=2  idir=0 lab=F  abserr=T/
 13.99     565.7     28.3
 17.59     478.19    23.91
 21.22     425.41    21.28
 24.92     338.44    16.93
 28.68     284.71    14.24
 36.48     168.59    8.43
 40.56     137.9     6.86
 44.8      104.75    5.24
 53.       30.0      9.14
 53.94     38.45     2.71
 59.       25.62     2.55
 &

A example of the full SFresco input, suitable for batch running, is:

search4.in
min
fix 4
migrad
end
q
show
plot

where search4.in is the above search_file input file name.