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 Data Reduction
   
Anonymous: Guest
 05/22/2006 09:05PM (Read 3751 times)  



I'm about to start reducing my data. Do I need to make a copy of the files first before I do anything to them or is step one simply to combine and subtract the bias frames??Thanks!

 
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fitz
 05/22/2006 09:05PM  
AAAAA
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Registered: 09/30/2005
Posts: 4040
If you're talking about CCDPROC (or most other tasks for that matter), you can simply specify a different output filename and you won't overwrite the input file. Any task which has an 'output' parameter will only read the 'input' file, unless the filename is the same in which case it generaly makes a copy and replaces the original when the task completes. See the help pages or documentation cookbooks for more details.Cheers,
-Mike

 
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