problems with memory usage

*To*: mathgroup at smc.vnet.net*Subject*: [mg63263] problems with memory usage*From*: Marcelle Santos <marcellesantos at yahoo.com>*Date*: Tue, 20 Dec 2005 23:35:48 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

I have to fit a model to a long set of data from previous calculations. These data are in a file called "ptab.m", which has this structure: {k1,{{x1,y1},{x2,y2},{x3,y3},...}} {k2,{{x1,y1},{x2,y2},{x3,y3},...}}