Re: combine a list of lists with another list of lists
- To: mathgroup at smc.vnet.net
- Subject: [mg40932] Re: combine a list of lists with another list of lists
- From: "Dana DeLouis" <delouis at bellsouth.net>
- Date: Thu, 24 Apr 2003 05:30:33 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Don't know if this idea will help as I'm new at this...
pts=Outer[List,{x1,x2,x3},{y1,y2,y3}]
{{{x1, y1}, {x1, y2}, {x1, y3}}, {{x2, y1}, {x2, y2}, {x2, y3}},
{{x3, y1}, {x3, y2}, {x3, y3}}}
z=Partition[ToExpression[Table["z"<>ToString[j],{j,9}]],3]
{{z1, z2, z3}, {z4, z5, z6}, {z7, z8, z9}}
Table[Flatten[({pts[[r,c]],z[[r,c]]})],{r,3},{c,3}]
{{{x1, y1, z1}, {x1, y2, z2}, {x1, y3, z3}}, {{x2, y1, z4}, {x2, y2, z5},
{x2, y3, z6}}, {{x3, y1, z7}, {x3, y2, z8}, {x3, y3, z9}}}
--
Dana DeLouis
Windows XP
$VersionNumber -> 4.2
= = = = = = = = = = = = = = = = =
"sean kim" <shawn_s_kim at yahoo.com> wrote in message
news:b858o8$5s6$1 at smc.vnet.net...
> hello group
>
> I have a bit of list operation problem.
>
> let's say we have two lists, one list of lists of z values over time.
> then another list of lists of x and y values over time
>
> as follows for example,
>
> {{z1, z2, z3}, {z4, z5, z6}, {z7, z8, z9}}
>
> the number of the lists withing this list varies in actual problem
>
> also condsider the following list of lists.
>
>
> {{{x1, y1}, {x1, y2}, {x1, y3}},
> {{x2, y1}, {x2, y2}, {x2, y3}},
> {{x3, y1}, {x3, y2}, {x3, y3}}}
>
> now i would like to generate a new list that is of the form {xn, yn,
> zn} such that it can be plotted using ListPlot command
>
> as..
>
> {{{x1, y1, z1}, {x1, y2, z2}, {x1, y3, z3}},
> {{x2, y1, z4}, {x2, y2, z5}, {x2, y3, z6}},
> {{x3, y1, z7}, {x3, y2,z8}, {x3, y3,z9}}}
>
> but it seems to me listplot3D will only plot if it's a single list of
> lists of xyz values. not multiple lists of lists as i have defined
> above.
>
> how can I first generate a new list using the preexisting list of lists
> as above and then plot them?
>
> much appreciate any help and comments.
>
> thanks again all.
>
> sean from UCIrvine