Re: patterns
- To: mathgroup at smc.vnet.net
- Subject: [mg101883] Re: [mg101864] patterns
- From: Adriano Pascoletti <adriano.pascoletti at dimi.uniud.it>
- Date: Mon, 20 Jul 2009 19:20:58 -0400 (EDT)
- References: <200907201000.GAA28316@smc.vnet.net>
In[4]:= Cases[myoutput, r : Rule[a[_] | c[_], _], Infinity]
Out[4]= {a[1] -> 6.75, a[2] -> 1.25, c[1] -> 1.65, c[2] -> 0.15}
Adriano Pascoletti
2009/7/20 Francisco Gutierrez <fgutiers2002 at yahoo.com>
> Dear Group:
> Ther output of a code I made (which includes a minimization) is of the
> following guise:
>
>
> {11.2,{dUp[1]->0.,dUp[2]->0.,dUp[3]->0.,dUp[4]->2.1,dUp[5]->0.,dUm[1]->0. ,dUm[2]->2.6,dUm[3]->0.5,dUm[4]->0.,dUm[5]->0.,dLp[1]->0.,dLp[2]->0.,dLp[3]->0.,dLp[4]->1.4,dLp[5]->0.,dLm[1]->0.,dLm[2]->3.1,dLm[3]->1.5,dLm[4]->0.,dLm[5]->0.,a[1]->6.75,a[2]->1.25,c[1]->1.65,c[2]->0.15}}
>
> Of this output, I want to capture only the a's and the c's. There is an
> easy and sloppy manner, but general and I think not slow, to do this because
> they appear always at the end of the output. But I wonder if it were
> possible to use pattern matching to make the same thing, something of the
> sort of Cases[myoutput, a[__]]. Is it possible? How can it be done?
> Thanks
> Francisco
>
>
- References:
- patterns
- From: Francisco Gutierrez <fgutiers2002@yahoo.com>
- patterns