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MathGroup Archive 2007

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why DateListPlot is so slow?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg79889] why DateListPlot is so slow?
  • From: Arkadiusz.Majka at gmail.com
  • Date: Wed, 8 Aug 2007 04:47:57 -0400 (EDT)

Hi,

I have a list (a time series):

data={{00:00:30,x1},{00:01:00,x2},{00:01:30,x3},....}

at equally spaced time intervals (30 seconds). The length od data is
8100 (24 h)

DateListPlot[data] works fine but takes 28 sec, since
ListPlot[data[[All,2]]] does it in less than 0.1 sec....

Can you explain me why DateListPlot is so time consuming? Can we
improve it?

Best,

Arek



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