| Re: Frustrated by 2 Data Plotting problems [message #76382 is a reply to message #76275] |
Tue, 31 May 2011 13:30   |
almost_like_a_metapho
Messages: 8
Registered: May 2011
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Junior Member |
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On May 27, 2:28 pm, David Fanning <n...@idlcoyote.com> wrote:
> I don't have any problem with scatterplots. I'm
> just saying that you can't realistically "see"
> 4 million points on a line plot unless your
> monitor is the size of, say, the Vietnam
> Memorial wall!
Well, a cinema display would go most of the way...
I'll grant you that some of this data does indeed overlap, and it is
indeed at least part of the point to identify some of the overlapping
locations. Additionally, I do intend to slice the data into smaller
sections and mask it in various ways.
This is meant to be a quick and somewhat dirty display of a large data
set. the worry about taking a percentage, or an 'every x points' is
that some variability that I want to identify makes x occasionally
equal to 1. 1% would also significantly under-represent my data.
Though I'm going to experiment with 1/2 and 1/4. It really turns out
that the limiting factor in this particular problem is file i/o as
opposed to rendering speed.
On the other hand, I have finer displays in mind for data subsets.
N
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