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include "../lib/io.h"
include "../lib/fitparams.h"
include "../lib/parser.h"
# IO_GCOEFFS - Get fit coefficients from a text database file
int procedure io_gcoeffs (fname, sym, stat, chisqr, rms, params, errors,
nparams)
char fname[ARB] # output database name
int sym # equation symbol
int stat # fit error code (output)
real chisqr # reduced chi-squared of the fit
real rms # RMS of the fit
real params[nparams] # parameter values (output)
real errors[nparams] # parameter errors (output)
int nparams # number of parameters
#int i
int nread, rec
pointer dt
#bool clgetb()
int dtlocate(), dtgeti()
pointer dtmap(), pr_xgetname()
real dtgetr()
errchk dtmap()
begin
# Debug ?
#if (clgetb ("debug.iocode")) {
#call eprintf ("io_gcoeffs.in: (fname=%s) (sym=%d) (npar=%d)\n")
#call pargstr (fname)
#call pargi (sym)
#call pargi (nparams)
#}
# Map database.
dt = dtmap (fname, READ_ONLY)
# Locate record for the equation.
iferr (rec = dtlocate (dt, Memc[pr_xgetname (sym)])) {
call dtunmap (dt)
return (0)
}
# Get fit status code, chisqr, and rms.
iferr (stat = dtgeti (dt, rec, STATUS))
stat = INDEFI
iferr (chisqr = dtgetr (dt, rec, CHISQR))
chisqr = INDEFR
iferr (rms = dtgetr (dt, rec, RMS))
rms = INDEFR
# Get parameter values and errors.
iferr (call dtgar (dt, rec, VALUES, params, nparams, nread))
nread = 0
iferr (call dtgar (dt, rec, ERRORS, errors, nparams, nread))
nread = 0
# Debug ?
#if (clgetb ("debug.iocode")) {
#call eprintf (
#"io_gcoeffs.out: (stat=%d) (chisqr=%g) (rms=%g) (nread=%s)")
#call pargi (stat)
#call pargr (chisqr)
#call pargr (rms)
#call pargi (nread)
#call eprintf ("\nvalues:")
#do i = 1, nread {
#call eprintf (" (%g)")
#call pargr (params[i])
#}
#call eprintf ("\nerrors:")
#do i = 1, nread {
#call eprintf (" (%g)")
#call pargr (errors[i])
#}
#call eprintf ("\n")
#}
# Unmap the database.
call dtunmap (dt)
# Return number of values read.
return (nread)
end
# IO_PCOEFFS - Put fit coefficients in the output file
procedure io_pcoeffs (fname, sym, stat, wtflag, variance, chisqr, scatter,
rms, params, errors, plist, nparams)
char fname[ARB] # output database name
int sym # equation symbol
int stat # fit error code
int wtflag # type of weighting
real variance # variance of the fit
real chisqr # reduced chi-squared of the fit
real scatter # additional scatter squared in the fit
real rms # RMS of the fit
real params[nparams] # parameter values
real errors[nparams] # parameter errors
int plist[nparams] # parameter list
int nparams # number of parameters
bool isfit
char str[SZ_LINE]
int i, j
pointer dt
real rval
#bool clgetb()
int pr_gpari()
pointer pr_xgetname(), pr_gsymc(), pr_gsymp(), pr_gderc(), dtmap(), pr_gderp()
real pr_gsymr()
errchk dtmap()
begin
# Debug ?
#if (clgetb ("debug.iocode")) {
#call eprintf ("io_pcoeffs: (fname=%s) (sym=%d) (stat=%d) "
#call pargstr (fname)
#call pargi (sym)
#call pargi (stat)
#call eprintf ("(chisqr=%g) (rms=%g) (npar=%d)\n")
#call pargr (chisqr)
#call pargr (rms)
#call pargi (nparams)
#}
# Map the database.
dt = dtmap (fname, APPEND)
# Put time stamp and record identification.
call dtptime (dt)
call dtput (dt, "begin\t%s\n")
call pargstr (Memc[pr_xgetname (sym)])
# Write fit status code and message.
call nlerrmsg (stat, str, SZ_LINE)
call dtput (dt, "\t%s\t%d\t(%s)\n")
call pargstr (STATUS)
call pargi (stat)
call pargstr (str)
# Write the variance and standard deviation.
call dtput (dt, "\t%s\t%g\n")
call pargstr (VARIANCE)
call pargr (variance)
call dtput (dt, "\t%s\t%g\n")
call pargstr (STDEV)
if (variance > 0.0)
call pargr (sqrt (variance))
else
call pargr (0.0)
# Write the average square error and the average error.
call dtput (dt, "\t%s\t%g\n")
call pargstr (AVSQERROR)
if (chisqr <= 0.0)
rval = 0.0
else
rval = variance / chisqr
call pargr (rval)
call dtput (dt, "\t%s\t\t%g\n")
call pargstr (AVERROR)
call pargr (sqrt (rval))
# Write out the average square scatter and the average scatter.
call dtput (dt, "\t%s\t%g\n")
call pargstr (AVSQSCATTER)
if (scatter <= 0.0)
rval = 0.0
else
rval = scatter
call pargr (rval)
call dtput (dt, "\t%s\t%g\n")
call pargstr (AVSCATTER)
call pargr (sqrt (rval))
# Write reduced chi-squared.
call dtput (dt, "\t%s\t\t%g\n")
call pargstr (CHISQR)
call pargr (chisqr)
# Write RMS.
call dtput (dt, "\t%s\t\t%g\n")
call pargstr (MSQ)
call pargr (rms * rms)
call dtput (dt, "\t%s\t\t%g\n")
call pargstr (RMS)
call pargr (rms)
# Write reference equation.
call dtput (dt, "\t%s\t%s\n")
call pargstr (REFERENCE)
call pargstr (Memc[pr_gsymc (sym, PTEQREF)])
# Write the fitting equation.
call dtput (dt, "\t%s\t\t%s\n")
call pargstr (FITTING)
call pargstr (Memc[pr_gsymc (sym, PTEQFIT)])
# Write the weighting information.
call dtput (dt, "\t%s\t\t%s\n")
switch (wtflag) {
case FWT_UNIFORM:
call pargstr (WEIGHTING)
call pargstr ("uniform")
case FWT_PHOTOMETRIC:
call pargstr (WEIGHTING)
call pargstr ("photometric")
case FWT_EQUATIONS:
call pargstr (WEIGHTING)
if (pr_gsymp (sym, PTEQRPNWEIGHT) == NULL)
call pargstr ("uniform")
else
call pargstr (Memc[pr_gsymc (sym, PTEQWEIGHT)])
default:
call pargstr (WEIGHTING)
call pargstr ("uniform")
}
# Write the parameter names.
call dtput (dt, "\t%s\t%d\n")
call pargstr (PARAMETERS)
call pargi (nparams)
do i = 1, nparams {
call dtput (dt, "\t\t%s\t(%s)\n")
call pargstr (Memc[pr_xgetname (pr_gpari (sym, i, PTEQPAR))])
isfit = false
do j = 1, nparams
if (plist[j] == i) {
isfit = true
break
}
if (isfit)
call pargstr ("fit")
else
call pargstr ("constant")
}
# Write the derivatives.
call dtput (dt, "\t%s\t%d\n")
call pargstr (DERIVATIVES)
call pargi (nparams)
do i = 1, nparams {
if (pr_gderp (sym, i, PTEQRPNDER) != NULL) {
call dtput (dt, "\t\t%s\n")
call pargstr (Memc[pr_gderc (sym, i, PTEQDER)])
} else {
call dtput (dt, "\t\t%g\n")
call pargr (pr_gsymr (pr_gpari (sym, i, PTEQPAR),
PFITDELTA))
}
}
# Write the parameter values.
call dtput (dt, "\t%s\t%d\n")
call pargstr (VALUES)
call pargi (nparams)
do i = 1, nparams {
call dtput (dt, "\t\t%g\n")
call pargr (params[i])
}
# Write the parameter errors.
call dtput (dt, "\t%s\t%d\n")
call pargstr (ERRORS)
call pargi (nparams)
do i = 1, nparams {
call dtput (dt, "\t\t%g\n")
call pargr (errors[i])
}
call dtput (dt,"\n")
# Close the database.
call dtunmap (dt)
end
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