How do I extract specific data from a time series?

I have a time series with dimensions 10001x3 from which I need to extract samples from 2001:7001. I tried ts(2001,1):ts(7001,1), & similarly for other 2 columns, but I get a 1-by-0 matrix. Is there any other way to extract data??? Please help.

Answer 1

[Bob]

 t=zeros(10001,3);
 T1=[t(2001:7001,1)];
 T2=[t(2001:7001,2)];
 T3=[t(2001:7001,3)];

[Varun Jadhav]

Thanks... :)