Re: newbie myHead question
- To: mathgroup at smc.vnet.net
- Subject: [mg47031] Re: newbie myHead question
- From: bobhanlon at aol.com (Bob Hanlon)
- Date: Mon, 22 Mar 2004 05:18:43 -0500 (EST)
- References: <c3h1jj$bc8$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
m={{a,b},{a,b},{a,b}};
Apply[myHead,Transpose[m]]
myHead[{a, a, a}, {b, b, b}]
Bob Hanlon
In article <c3h1jj$bc8$1 at smc.vnet.net>, =?ISO-8859-1?Q?J=E1nos?=
<janos.lobb at yale.edu> wrote:
<< I have
m = {{a, b}, {a, b}, {a, b}}
When I apply Transpose to it, I will have
Transpose[m]
{{a, a, a}, {b, b, b}}
The FullForm of it is
List[List[a, a, a], List[b, b, b]]
Now, if I do
n = Apply[myHead, m]
I get
myHead[{a, b}, {a, b}, {a, b}]
If I apply Transpose to it, I get
Transpose[n]
Transpose[myHead[{a, b}, {a, b}, {a, b}]]
The FullForm of it
Transpose[myHead[List[a, b], List[a, b], List[a, b]]]
which is not that I need. I need
myHead[{a,a,a},{b,b,b}]
or
myHead[List[a, a, a], List[b, b, b]]
What am I missing ? What should I do to get myHead[{a,a,a},{b,b,b}] ?