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Re: Dealing with large data sets

  • To: mathgroup at smc.vnet.net
  • Subject: [mg42970] Re: [mg42961] Dealing with large data sets
  • From: jmt <jmt at dxdydz.net>
  • Date: Thu, 7 Aug 2003 00:53:29 -0400 (EDT)
  • References: <200308060716.DAA13563@smc.vnet.net>
  • Reply-to: jmt at dxdydz.net
  • Sender: owner-wri-mathgroup at wolfram.com

Which Mathematica version are you referring to ?
If <5 , the Mean command is available in a AddOn package , if 5, Mean is 
available in the kernel.


On Wednesday 06 August 2003 09:16, Rees wrote:
  > Dear all,
  >
  > I have a large dataset (156381 points) and I wish to fit a
  > distribution to the dataset.  However I cannot seem to get Mathematica to
  > recognise the dataset.  I imported the data as "testdata" then did
  > Mean[testdata].  Unfortunately this command just repeated the data and
  > failed to give me the mean value.
  >
  > I repeated everything using another data format:
  > {0.217,0.434,0.652 etc...} with the same response.
  >
  >
  > Any help greatly appreciated.
  >
  > Rees
  >
  > DATASET:
  >
  > 0.217
  > 0.434
  > 0.652
  > 0.217
  > 0.869
  > 0.268
  > 1.303
  > 0.433
  > 4.118
  > 0.561
  > 0.18
  > 0.359
  > 0.539
  > 0.18
  > 0.718
  > 0.139
  > 1.077
  > 0.848
  > 0.696
  > 3.976
  > 0.549
  > 0.509
  > 0.125
  > 2.498
  > 0.625
  > 0.213
  > 0.427
  > 0.64
  > 0.213
  > 0.854
  > 0.229
  > 1.28
  > 1.273
  > 0.392
  > 1.28
  > 0.764
  > 0.196
  > 3.922
  > 0.98
  > 0.183
  > 0.367
  > 0.55
  > 0.183
  > 0.734
  > 0.157
  > 1.101
  > 1.003
  > 0.602
  > 3.007
  > 0.392
  > 0.602
  > 0.154
  > 3.084
  > 0.771
  > data continues down 156381st row


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