imcombine
milena wrote on Apr 20, 2011
hey,
I want to stack some images. These images are onedimensional (.ms.fits) and wavelength calibrated.
I wanted to use imcombine but got an error message. Here you can see what I wrote:
> imcombine
> list of images to combine: list.dat
> list of output images: obj001.ms.fits
> Warning: cannot open image: list.dat
> Warning: can't make temporary stack images
> ...
Could you tell me what I did wrong? Do I use the wrong task?
thanks :)
milena
I want to stack some images. These images are onedimensional (.ms.fits) and wavelength calibrated.
I wanted to use imcombine but got an error message. Here you can see what I wrote:
> imcombine
> list of images to combine: list.dat
> list of output images: obj001.ms.fits
> Warning: cannot open image: list.dat
> Warning: can't make temporary stack images
> ...
Could you tell me what I did wrong? Do I use the wrong task?
thanks :)
milena
Rob Steele wrote on Apr 20, 2011
If you want to blast over a couple of the images along wit the parameters you used I can take a look tonight. My e-mail address is robsteele49@yahoo.com
Mike Fitzpatrick wrote on Apr 20, 2011
See also the SCOMBINE task in the ONEDSPEC package.
milena wrote on Apr 20, 2011
hey,
I used the scombine task and didn't use a list for the input but d*.ms.fits and it worked!! thank you!!!!!!!!!! :) :) :)
@ robsteele49: thanks for the offer to help me :)
milena
I used the scombine task and didn't use a list for the input but d*.ms.fits and it worked!! thank you!!!!!!!!!! :) :) :)
@ robsteele49: thanks for the offer to help me :)
milena
Francisco Valdes wrote on Apr 20, 2011
In case you haven't discovered the answer to lists ...
Many programs ask for a list of images/files. What this means is either
- a comma separated list: a,b,c
- a wildcard template: f*fits
- a file containing the names of the files: @list.dat
- or some combination of these: a,b,@c.dat,d*
Note that you use the character @ to indicate that the file names are contained in the specified file.
This applies to more than 90% of tasks. There are a few oddballs, usually written by a novice, where the argument is expected to be the file itself (e.g. list.dat). Those are rare and, hopefully, the parameter prompt or help is clear.
Frank Valdes
Many programs ask for a list of images/files. What this means is either
- a comma separated list: a,b,c
- a wildcard template: f*fits
- a file containing the names of the files: @list.dat
- or some combination of these: a,b,@c.dat,d*
Note that you use the character @ to indicate that the file names are contained in the specified file.
This applies to more than 90% of tasks. There are a few oddballs, usually written by a novice, where the argument is expected to be the file itself (e.g. list.dat). Those are rare and, hopefully, the parameter prompt or help is clear.
Frank Valdes
Last post on Apr 20, 2011