RE: Extracting a sub-list?
- To: mathgroup at smc.vnet.net
- Subject: [mg37948] RE: [mg37933] Extracting a sub-list?
- From: "Florian Jaccard" <jaccardf at eicn.ch>
- Date: Thu, 21 Nov 2002 00:38:18 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Here a easy way :
In[7]:=DeleteCases[Table[x/2, {x, 1, 5}], x_ /; !IntegerQ[x]]
Out[7]={1, 2}
Meilleures salutations
Florian Jaccard
-----Message d'origine-----
De : AngleWyrm [mailto:no_spam_anglewyrm at hotmail.com]
Envoyé : mer., 20. novembre 2002 15:09
À : mathgroup at smc.vnet.net
Objet : [mg37933] Extracting a sub-list?
How do I extract the subset of answers in a list that are pure integers?
As an example,
in:
Table[x/2, {x, 1, 5}]
IntegerQ /@ %
out:
{ 1/2, 1, 3/2, 2, 5/2 }
{ False, True, False, True, False }
But I want to get a result of:
{ 1, 2 }
-:¦:-
AngleWyrm