Re: Manipulating current read position in a binary file
- To: mathgroup at smc.vnet.net
- Subject: [mg80323] Re: Manipulating current read position in a binary file
- From: Aranthon <a.dwarf at gmail.com>
- Date: Fri, 17 Aug 2007 01:56:24 -0400 (EDT)
- References: <fa132d$mvv$1@smc.vnet.net><fa1cau$7ln$1@smc.vnet.net>
No, no, they help. It was a few hours after I sent the post that I managed to uncover these functions, and yeah, they're exactly what I was looking for. The new help browser set up in Mathematica 6 is . . . taking some time to get used to navigating through. On Aug 16, 7:27 am, Jens-Peer Kuska <ku... at informatik.uni-leipzig.de> wrote: > Hi, > > and SetStreamPosition[] and StreamPosition[] does not help ? > > Regards > Jens > > Aranthon wrote: > > Hello all, > > > I'm trying to read in a large data file (several million data points); > > at the beginning of the file is the number of data points, but at the > > end of the file is the number of bins into which the data will be > > grouped. Is there a way to skip to the end of the file to read in the > > number of bins before returning to the beginning of the file to read > > in the actual data? I can do the analysis In another CAS, since there are > > functions fseek and ftell, so that once I read in the number of data > > points I can seek to the end, get the grouping count, then seek back > > to the beginning, but I'd like to be able to do it in Mathematica. > > > Any suggestions? > > > Thanks, > > > Greg Anderson > > Doctoral Candidate > > University of Maryland