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MathGroup Archive 2012

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Re: addRule

  • To: mathgroup at smc.vnet.net
  • Subject: [mg125848] Re: addRule
  • From: Ulrich Arndt <ulrich.arndt at data2knowledge.de>
  • Date: Thu, 5 Apr 2012 05:46:25 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <201204040831.EAA29999@smc.vnet.net>

maybe there are more elegant ways but this will do

dat = {{1, {38, 35, 37}}, {2, {21}}, {3, {24, 14}}}
Clear[addRule]
addRule[{a_Integer, b_List}] := 
  Apply[Rule, Transpose[{ConstantArray[a, Length[b]], b}], {1}];
Map[addRule, dat]

Ulrich

Am 04.04.2012 um 10:31 schrieb clansa:

> Hello,
> I have these data
> {{1, {38, 35, 37}}, {2, {21}}, {3, {24, 14}}}
> and I want
> {[1->38,1->35,1->37},{2->21},{3->24,3->14}}
> The solution is simple when list of data have the same length
> But what is the solution for my example
> Thanks
> 
> Andrew
> 




  • References:
    • addRule
      • From: clansa <dauphinester@gmail.com>
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