| Re: How would you measure the range of density on a graph using IDL? [message #81152] |
Fri, 24 August 2012 23:20 |
Russell Ryan
Messages: 122
Registered: May 2012
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Senior Member |
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On Friday, August 24, 2012 5:57:48 AM UTC-4, jlta...@gmail.com wrote:
> I am working on a project to identify local dwarf galaxies. I was wondering as to how I would go about getting the computer to measure the variation (range) of density from a graph? Any help would be appreciated!
>
> Cheers.
I highly doubt you'll get any good advice on what algorithm you should use for this. I'll bet good money that there are at least half-a-dozen papers in the literature on detecting local dwarf galaxies. You should find those to get an idea of the algorithm, then ask for help about implementing said algorithm.
Russell
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| Re: How would you measure the range of density on a graph using IDL? [message #81153 is a reply to message #81152] |
Fri, 24 August 2012 15:49  |
Craig Markwardt
Messages: 1869
Registered: November 1996
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Senior Member |
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On Friday, August 24, 2012 5:57:48 AM UTC-4, jlta...@gmail.com wrote:
> I am working on a project to identify local dwarf galaxies. I was wondering as to how I would go about getting the computer to measure the variation (range) of density from a graph? Any help would be appreciated!
>
"Density from a graph" could have so many meanings. Usually a "graph" is something we print on paper, which is why David made is comment about a scanner. Perhaps you meant something else...
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