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Re: Frustrated by 2 Data Plotting problems [message #76396 is a reply to message #76266] Tue, 31 May 2011 01:46 Go to previous message
Carsten Lechte is currently offline  Carsten Lechte
Messages: 124
Registered: August 2006
Senior Member
On 28/05/11 21:29, Paulo Penteado wrote:
> It does not change in that case, but it can easily not be the case. I
> have one particular application where I can have millions of points to
> plot, and the visualization would change substantially if I took a
> random subsample.

Long ago, when computers were much slower, I had the problem that
scatter plots with millions of points would produce huge ps files and
take forever to render on screen or to print. I applied poor man's
binning by doing the scatter plot into a bitmap graphic. That way, I
had all the points, but there was an upper bound to the size of the
plot and the resources it took to render it.


chl

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