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MathGroup Archive 2005

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Reducing memory for big data sets

  • To: mathgroup at
  • Subject: [mg57891] Reducing memory for big data sets
  • From: Maximilian Ulbrich <mulbrich at>
  • Date: Sat, 11 Jun 2005 03:35:59 -0400 (EDT)
  • Organization: University of California, Berkeley
  • Sender: owner-wri-mathgroup at


I have a big data set of 128*128*1000 points to evaluate (a series of 
images, and I plan to use 256*256*1000 as well...).
When I read the data into Mathematica from text files, MemoryInUse[] 
says about 300MB are used. However, my images consist of only about 
16.000.000 data points of 1 byte or 2 bytes for other data sets.

Is it possible to make Mathematica reduce the used memory by storing the 
data in another format maybe?


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