R help - Oct 2010 - Combinations

Hi all,

I´ve been ill and I have lost a lot of time without seen the pc.

I want you to help if you can if you want.

Only I need an initial guide. I´ve been out a lot of time and I need a hope.
Is only for "joby" purposes.

The problem:

I want to simulate each of the posible combination in a play. Imagine they
play to games (football games) and you can choose "1", "X",
"2" you must
choose this 15 times.

So finally you will get a colum 15x1 si you have (3^15) posible colums.

I want to extract all the columns were in the row 3 you can find an
"2". Or
in the row 3 appears a "1" and row 3 "x".

And extract them and save in a txt document.

Sorry I know that I only ask but actually I feel very fool.

If you give an initial guide will be sufficient.

Many thanks for all in advace.

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Dear ????, 

15 is very big number for me (perhaps for R as well :() so I have tried
following:

mat <- expand.grid(rep(list(c("1", "X",
"2")),4)); mat[mat[,3]=="2",]
-- 
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Hi all,

Reading more I have find a partial solution on a part of the proble in some
part of the code it should appea something like:

# NC: All the potential combinations 3^15

if

NC[price(i,j)=="1" & price(i,j)=="2"]----> extract
this column
then save all the columns that contain this pre-requisite.


2010/10/4 Trying To learn again <tryingtolearnagain@gmail.com>
> Hi all,
>
> I´ve been ill and I have lost a lot of time without seen the pc.
>
> I want you to help if you can if you want.
>
> Only I need an initial guide. I´ve been out a lot of time and I need a
> hope. Is only for "joby" purposes.
>
> The problem:
>
> I want to simulate each of the posible combination in a play. Imagine they
> play to games (football games) and you can choose "1",
"X", "2" you must
> choose this 15 times.
>
> So finally you will get a colum 15x1 si you have (3^15) posible colums.
>
> I want to extract all the columns were in the row 3 you can find an
"2". Or
> in the row 3 appears a "1" and row 3 "x".
>
> And extract them and save in a txt document.
>
> Sorry I know that I only ask but actually I feel very fool.
>
> If you give an initial guide will be sufficient.
>
> Many thanks for all in advace.
>
>
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