Table Format Problem

*To*: mathgroup at smc.vnet.net*Subject*: [mg98372] Table Format Problem*From*: Solver <shawnleroux at hotmail.com>*Date*: Wed, 8 Apr 2009 05:02:25 -0400 (EDT)

Hello, I would like to export the results of an NDSolve simulation but I can not seem to figure out how to export my data in the format I want. Here is a simplified version of my code. I have two variables: R1 and P1. I am solving the system from t = 100 to 110 for values of J = 1 to 5. I want my data to be in the following format: Each column is a solution to a variable for a given time (time are the rows). I would have 10 columns (R1[J=1], P1[J=1],R1[J=2],P1[J=2]...R1 [J=5],P1[J=5]) and 11 rows (one for each time step). The closest I could get was having 2 columns (R1, P1) with the rows being solutions for J=1, then J=2, etc. Here is my code: a1=1; d1=.3; l1=.15; T=110; dR1=J-l1*R1[t]-a1*R1[t]*P1[t]; dP1=a1*R1[t]*P1[t]-d1*P1[t]; Flatten[Map[({R1[110],(P1[110])}/.#)&,Table[sol[J]=NDSolve[{R1'[t] ==dR1,P1'[t]==dP1,R1[0]==1,P1[0]==1},{R1,P1},{t,100,T},MaxSteps- >100000],{J,1,5,1}]],1]//Transpose; A=Flatten[Table[Evaluate[({R1[t],P1[t]}/.sol[J]),{J,1,5,1}],{t,100,T, 1}],2]; Export["Data.csv",A]; I appreciate any help you can provide! Cheers, Shawn