Re: convert txt to binary file
- To: mathgroup at smc.vnet.net
- Subject: [mg108844] Re: convert txt to binary file
- From: telefunkenvf14 <rgorka at gmail.com>
- Date: Sat, 3 Apr 2010 06:08:53 -0500 (EST)
- References: <hp4gg1$7rq$1@smc.vnet.net>
On Apr 2, 5:21 am, jihane <jihane.aj... at mail.mcgill.ca> wrote: > Hello all, > > I have a 4Gb txt file and it is not possible to work with that because it is huge. Does someone knows how to convert an ascii file to a binary file using mathematica? I have a collegue that does it with another system but I can't find out how to do that. I searched a lot without sucess. > > Your help would be extremelly appreciated. > > Thank you! I recommend you read the following post (from the excellent 'Lunchtime Playground: Fun with Mathematica' blog): http://mathgis.blogspot.com/2009/03/tip-processing-large-data-sets.html In a nutshell: use ReadList[] rather than Import[], and read in only what you need. Other than that, you may want to create a database and have Mathematica access your data via that route instead. -RG