Dear all,

it looks like fix() changes the class of mts objects, here is a reproducible
example (tested both on WinXP and Linux):

> x <- ts(cbind(1:5,1:5))
> x
Time Series:
Start = 1
End = 5
Frequency = 1
  Series 1 Series 2
1        1        1
2        2        2
3        3        3
4        4        4
5        5        5
> class(x)
[1] "mts" "ts"
> edit(x)
     Series 1 Series 2
[1,]        1        1
[2,]        2        2
[3,]        3        3
[4,]        4        4
[5,]        5        5
> class(x)
[1] "mts" "ts"
> fix(x)
> class(x)
[1] "matrix"
> x
     Series 1 Series 2
[1,]        1        1
[2,]        2        2
[3,]        3        3
[4,]        4        4
[5,]        5        5

> R.version
               _
platform       i386-pc-mingw32
arch           i386
os             mingw32
system         i386, mingw32
status
major          2
minor          5.0
year           2007
month          04
day            23
svn rev        41293
language       R
version.string R version 2.5.0 (2007-04-23)

> R.version
platform       x86_64-unknown-linux-gnu
arch           x86_64
os             linux-gnu
system         x86_64, linux-gnu
status
major          2
minor          5.0
year           2007
month          04
day            23
svn rev        41293
language       R
version.string R version 2.5.0 (2007-04-23)

______________________________________________________

Simone Giannerini
Dipartimento di Scienze Statistiche "Paolo Fortunati"
Universita' di Bologna
Via delle belle arti 41 - 40126  Bologna,  ITALY
Tel: +39 051 2098262  Fax: +39 051 232153
______________________________________________________

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