help: output arrays into file as column

[bei]

Perfect! It works. Thanks Bruno.
Bruno Desthuilliers wrote:
> bei a écrit :
> <ot> Please don't top-post</ot>
>
> > Hi,Simon,
> >
> > Thanks for your reply.It's very helpful :)
> > But I am sorry for my given example.Actually, my data in the arrays are
> > all float point datas.And I use integer in the example.The code is like
> > this.
> > ("x,v,...,h" are floating point number arrays)
>
> Arrays or lists ?
>
> > pos=str(x)
>
> Why on earth are you doing this ?
>
> > vel=str(v)
> > ene=str(u)
> > den=str(rho)
> > pre=str(P)
> > hms=str(h)
> > datas=zip(pos,vel,ene,den,pre,hms)
>
> datas = zip(v, u, rho, P, h)
>
> > filename="data.dat"
> > file=open(filename,"w")
>
> This shadows the builtin 'file' type. Using another name may be a good idea.
>
> > for datum in datas:
> >   print >>file, ' '.join(datum)
>    print >> file, ' '.join(map(str, datum))
>
> > file.close()
>
>
>
>
> >
> > However, the result seperate each point in floating number , but not
> > regard them as a whole. It's like this :
> >
> >
> > [ [ [ [ [ [
> > - 0 1 1 1 0
> > 0 . . . . .
> > . 0 4 0 0 0
> > 5 , 9 , , 0
> > 9   9     3
>
> (snip)
>
> One of the nice things with Python is the interactive shell. Let's use it:
> Python 2.4.1 (#1, Jul 23 2005, 00:37:37)
> [GCC 3.3.4 20040623 (Gentoo Linux 3.3.4-r1, ssp-3.3.2-2, pie-8.7.6)] on
> linux2
> Type "help", "copyright", "credits" or "license" for more information.
>  >>> a = map(float, range(0,3))
>  >>> a
> [0.0, 1.0, 2.0]
>  >>> b = map(float, range(12, 15))
>  >>> c = map(float, range(7, 10))
>  >>> a, b, c
> ([0.0, 1.0, 2.0], [12.0, 13.0, 14.0], [7.0, 8.0, 9.0])
>  >>> str(a)
> '[0.0, 1.0, 2.0]'
>  >>> list(str(a))
> ['[', '0', '.', '0', ',', ' ', '1', '.', '0', ',', ' ', '2', '.', '0', ']']
>  >>> zip(str(a), str(b), str(c))
> [('[', '[', '['), ('0', '1', '7'), ('.', '2', '.'), ('0', '.', '0'),
> (',', '0', ','), (' ', ',', ' '), ('1', ' ', '8'), ('.', '1', '.'),
> ('0', '3', '0'), (',', '.', ','), (' ', '0', ' '), ('2', ',', '9'),
> ('.', ' ', '.'), ('0', '1', '0'), (']', '4', ']')]
>  >>> zip(a, b, c)
> [(0.0, 12.0, 7.0), (1.0, 13.0, 8.0), (2.0, 14.0, 9.0)]
>  >>>
> 
> HTH