Re: transforming a rule of lists to a list of rules

*To*: mathgroup at smc.vnet.net*Subject*: [mg69161] Re: [mg69098] transforming a rule of lists to a list of rules*From*: Ken Levasseur <klevasseur at mac.com>*Date*: Thu, 31 Aug 2006 04:39:31 -0400 (EDT)*References*: <200608301032.GAA27888@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

This doesn't test for whether the two lists have equal lengths, but that would be easy to add: In[15]:= delist = #1 /. {({a__} -> {b__}) :> (Rule @@ #1 & ) /@ Transpose [{{a}, {b}}]} & Out[15]= #1 /. {({a__} -> {b__}) :> (Rule @@ #1 & ) /@ Transpose[{{a}, {b}}]} & In[16]:= delist[{a, b, c} -> {0, 3, x}] Out[16]= {a -> 0, b -> 3, c -> x} 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 > Ken Levasseur UMass Lowell Please avoid sending me Word or PowerPoint attachments. See http://www.gnu.org/philosophy/no-word-attachments.html

**References**:**transforming a rule of lists to a list of rules***From:*Ken Senior <Ken.Senior@nrl.navy.mil>