[R] Odp: Matrix to Vector

Petr PIKAL petr.pikal at precheza.cz
Wed Jun 16 09:41:06 CEST 2010


r-help-bounces at r-project.org napsal dne 15.06.2010 19:51:39:

> Hi All,
> I am trying to turn a Matrix into a vector for analysis purposes.  I 
need to
> select only certain columns from the entire matrix for the vector 
> time intervals).  Also I need to transpose the Matrix (so times are in 
> stack each successive new column on top of each other (latest at the top
> creating one long vector vs a matrix) then reassign the date to the left 
> each time (right now date is only shown once by row and will be in 
> when transposed).  Any thoughts?

Perhaps read docs for matrix, vector, transpose, stack and maybe check 
Rintro docs for data manipulation?


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