Re: transforming a rule of lists to a list of rules
- To: mathgroup at smc.vnet.net
- Subject: [mg69146] Re: [mg69098] transforming a rule of lists to a list of rules
- From: János <janos.lobb at yale.edu>
- Date: Thu, 31 Aug 2006 04:38:58 -0400 (EDT)
- References: <200608301032.GAA27888@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
On Aug 30, 2006, at 6:32 AM, Ken Senior wrote:
> Hello everyone.
>
> Does anyone know a way to transform a rule involving a list into a
> list
> of individual rules, that is to interpret the rule elementwise? For
> example, given
>
> {a,b,c} -> {0,3,x}
>
> is there a transformation which will turn this into
>
> {a->0, b->3, c->x}
>
> Thanks for the help!
>
> Ken
Here is a newbie approach:
In[1]:=
rl = {a, b, c} -> {x, y, z}
Out[1]=
{a, b, c} -> {x, y, z}
In[2]:=
Table[rl[[1,i]] -> rl[[2,i]],
{i, 1, Length[rl[[1]]]}]
Out[2]=
{a -> x, b -> y, c -> z}
With the best,
János
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- References:
- transforming a rule of lists to a list of rules
- From: Ken Senior <Ken.Senior@nrl.navy.mil>
- transforming a rule of lists to a list of rules