Dear R-helpers, If P is a matrix and I want to obtains one column from P I write: x<-P[,k] I always want to maintain the data as a matrix, even if the data is a single row, to do that I have to write: x<-P[,k,drop=FALSE] Here is my question: Is there any way that I can change my default to be drop=FALSE so that I do not have to add this every single time? Tomas,
matrix subset question
2 messages · tomas.larsson@gm.com, Brian Ripley
On Thu, 24 Apr 2003 tomas.larsson at gm.com wrote:
Dear R-helpers, If P is a matrix and I want to obtains one column from P I write: x<-P[,k] I always want to maintain the data as a matrix, even if the data is a single row, to do that I have to write: x<-P[,k,drop=FALSE]
Here is my question: Is there any way that I can change my default to be drop=FALSE so that I do not have to add this every single time?
No. And you would not want to, for much of R is itself written in R and relies on the default behaviour of subsetting.
Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595