Re: How to dynamically build a list of rules
- To: mathgroup at smc.vnet.net
- Subject: [mg109263] Re: How to dynamically build a list of rules
- From: Ingolf Dahl <ingolf.dahl at physics.gu.se>
- Date: Mon, 19 Apr 2010 06:13:58 -0400 (EDT)
- Organization: University of Gothenburg
- References: <201004190809.EAA10213@smc.vnet.net>
- Reply-to: <ingolf.dahl at physics.gu.se>
You first define your list of names, say by
namelist =
Table[ToExpression[StringJoin["name", ToString[i]]], {i, 1, 10}]
then you make your rule list by
subs = (#1 -> SomeFunction[#1]) & /@ namelist
Look at "Map" (for /@) and "Function" (for #1 and &) in the Mathematica help
if you do not recognize the notation
Best regards
Ingolf Dahl
Sweden
ingolf.dahl at telia.com
-----Original Message-----
From: janitor048 [mailto:janitor048 at googlemail.com]
Sent: den 19 april 2010 10:10
To: mathgroup at smc.vnet.net
Subject: [mg109263] [mg109136] How to dynamically build a list of rules
Hi there!
I need a somewhat larger list of substitution rules along the line of
subs = { name1 -> SomeFunction[name1], name2 ->
SomeFunction[name2], ... , nameN -> SomeFunction[nameN]}
Obviously typing that by hand can become a little annoying. So I would
like to have that list created dynamically, via Table[ ... ] or
something the like.
The problem is, I can't figure out the correct syntax for this task.
"name1" etc. are just, well, names (variable names to be specific).
Unfortunately I haven't been able to find a solution on the web so
far. Any suggestions?
Cheers,
Oliver
- References:
- How to dynamically build a list of rules
- From: janitor048 <janitor048@googlemail.com>
- How to dynamically build a list of rules