RE : Sum of list elements
- To: mathgroup at smc.vnet.net
- Subject: [mg49316] RE : [mg49313] Sum of list elements
- From: "Florian Jaccard" <florian.jaccard at eiaj.ch>
- Date: Tue, 13 Jul 2004 05:54:06 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Is this what you want ?
In[193]:=
liste={2,2,1};
In[195]:=
Plus@@liste
Out[195]=
5
In[196]:=
1/Plus@@liste*liste
Out[196]=
{2/5, 2/5, 1/5}
Meilleures salutations
F.Jaccard
-----Message d'origine-----
De : Per Rønne [mailto:spam at husumtoften.invalid]
Envoyé : mardi, 13. juillet 2004 10:33
À : mathgroup at smc.vnet.net
Objet : [mg49313] Sum of list elements
I'm trying to find a function [possibly a way to make a function] which
calculate the sum of the elements of a list.
Right now, the purpose is to find the relative distribution of the
elements of a list. That is, I need a way to get out that the
distribution of:
{2, 2, 1}
is
{2/5, 2/5, 1/5}.
Had I been able to get the sum of the list elements in this way:
Sum[{2, 2, 1}]
it could had been done with:
l = {2, 2, 1}
l / Sum[l]
--
Per Erik Rønne