reidentify. select if rms less than some value

Valeev Azamat wrote on May 01, 2007

Hi Iraf users!

I start xgterm and then pyraf.
I identify lines on He-Ne-Ar lamp exposure
for middle line of spectra(count=23, rms=0.15).
Than I want reidentify dispersion solution
for other part of image. I setup maximum RMS
value 0.17. But than I see program log (see below),
there are values great than 0.17. How write to
database only if RMS.lt.0.17?

--> reidentify wave.free.300V.15475.1 wave.free.300V.15475.1 coordlist=database/FORS2_300V.dat step=1 nlost=1 search="INDEF" shift="INDEF" interactive- override+ verbose+ rms=0.17

REIDENTIFY: NOAO/IRAF V2.12.2a-EXPORT Tue 18:15:07 01-May-2007
Reference image = wave.free.300V.15475.1, New image = wave.free.300V.15475.1, Refit = yes
Image Data Found Fit Pix Shift User Shift Z Shift RMS
wave.free.300V.15475.1[*,41] 22/23 22/22 -0.00129 -0.00497 3.60E-7 0.17
wave.free.300V.15475.1[*,40] 21/23 21/21 -2.24E-4 -0.00126 7.42E-7 0.182
** Too many features lost **
wave.free.300V.15475.1[*,39] 22/23 22/22 0.00435 0.0127 4.21E-6 0.175
wave.free.300V.15475.1[*,38] 22/23 22/22 0.00766 0.0229 6.55E-6 0.187

Azamat

---

Mike Fitzpatrick wrote on May 01, 2007

The aidpars.rms parameter is described as a "goal" value, not a cutoff filter. Looking at the code, the computed rms is simply reported in the log file and isn't checked directly for a value. If you want only those values less than some limit you'd need to extract those lines from the log file afterwards. Frank may have additional comments.

-Mike

---

Valeev Azamat wrote on May 01, 2007

Thanks, Mike.

I saw cource code yesterday and
I change it for selecting by rms.

I`m glad that I may always ask difficult question
from guru.

Azamat.

---

Last post on May 01, 2007