OK!!

So, the ideia is from the 1st matrix get the 2nd matrix with the use of a
vector.

is it possible?

In the example I have a 10x10 matrix and I get from that one a second 4x3
matrix selected from a vector.

thanks
ADias


2011/1/17 David Winsemius <dwinsemius@comcast.net>

>
> On Jan 17, 2011, at 11:16 AM, ADias wrote:
>
>
>> Hi,
>>
>> yes it works perfectly.
>>
>> I have another question:
>>
>> Is there way of selecting with a vector the values I wish to take out from
>> a
>> matrix.
>>
>> Example:
>>
>> I have this matrix and I want to take out the numbers in bold and get the
>> second matrix below
>>
>
> This is a plain text mailing list (despite what the Nabble mirror may
> (mis-)lead you into believing) ... no bold.
>
> --
> david.
>
>>
>>  m
>>>
>>     [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
>> [1,]   17    1    6    5   19    2   19    1   15     8
>> [2,]    7    7   20    3    2   16    9    9   19    13
>> [3,]    2    4    3   11   18   11   14   13    3     1
>> [4,]    3    7    5    7   17   18   10    6    5    15
>> [5,]    8   20   13   10    8   12   20   19    1    16
>> [6,]    9   14    1   12   12   12   17   18   10    17
>> [7,]    3   10   11    2   12    9   18    6   19     9
>> [8,]   13    2   17   16   18    8    9   14    9    16
>> [9,]    9    4   11    4    1   17    9    7   20    12
>> [10,]    9    1    4    8    8   19   19    8   17    18
>>
>>    [,1] [,2] [,3] [,4]
>> [1,]    7    3   16    9
>> [2,]    3    2    9   18
>> [3,]   13   16    8    9
>>
>> thanks
>> AD
>>
>> --
>> View this message in context:
>> http://r.789695.n4.nabble.com/How-to-doulbe-all-the-value-on-a-matrix-tp3221213p3221230.html
>>
>> Sent from the R help mailing list archive at Nabble.com.
>>
>> ______________________________________________
>> R-help@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
> David Winsemius, MD
> West Hartford, CT
>
>

	[[alternative HTML version deleted]]

