Re: plotting large datasets

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On Fri, 2009-08-21 at 20:21 -0400, DJ Delorie wrote:
> NiftyFedora Mitch <niftyfedora@xxxxxxxxxxxx> writes:
> > 32 channels is a LOT.
> 
> Hence the problem :-)
> 
> > Could you, an artist or a draftsman do it by hand?
> > Do you need all 32 channels on one page?
> >   i.e. can you plot 4, 8, 16 to a page and just print more pages.
> 
> Ideally, I'd have a GUI where I can select which channels to view, or
> show them all as a "background" color and select which ones to
> color/highlight.  I don't need to see them *all* at the same time (at
> least, not in a way that each channel is uniquely identifiable) but
> the ones I do see should be together (same scale and axes).
> 
> Now, if gnuplot had options for dashed or dotted lines, I might have
> squeaked by with it...
> 
	I have used the charting capability of Calc (the spreadsheet) to plot
data before, and that will handle quite a few lines at a time. Each data
can be added or deleted easily from the range selection by simply typing
in the range to view.  Not quite like having a button that shows it, but
perhaps you could write a macro to implement that capability?

	I have viewed 10 columns with over 30000 samples each with this tool.

	I don't know about 32 columns, but it would probably handle that as
well.  Your biggest issue is how to set them up.  The chart tool in calc
will let you display them in various formats, and colors.

Regards,
Les H


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