RE: time series
- To: mathgroup at smc.vnet.net
- Subject: [mg46380] RE: [mg46362] time series
- From: "David Park" <djmp at earthlink.net>
- Date: Mon, 16 Feb 2004 23:42:08 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Paolo,
alist = Array[a, 12]
xlist = Array[x, 4]
Evaluate[xlist] = Partition[alist, 3]
It is necessary to use Evaluate on the lhs above, otherwise Mathematica
resets xlist and not the parts of xlist.
Then you can work with the individual pieces.
x[2]
{a[4], a[5], a[6]}
David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/
From: paolo tarpanelli [mailto:tarpanelli at libero.it]
To: mathgroup at smc.vnet.net
Given a time series
x={a1,a2,a3,a4,a5,a6,...,an}
how can i divide it in different segments x1, x2,..., xn
x1={a1,a2,a3}
x2={a4,a5,a6}
...
xn={an-2,an-1,an}
thanks
Paolo