[R] Slow update(insert) on Data.frame

2010-11-23 Thread Joel
Hi When I try to update an number in a large data.frame by its pos It's really slow it take almost a sec to do this and I wonder why and if where is any faster way to update a number in a data.frame ive tried DF$col[POS]-number DF[xPOS,yPOS]-number Thx //Joel -- View this message in

Re: [R] Slow update(insert) on Data.frame

2010-11-23 Thread Charles C. Berry
On Tue, 23 Nov 2010, Joel wrote: Hi When I try to update an number in a large data.frame by its pos It's really slow it take almost a sec to do this and I wonder why and if where is any faster way to update a number in a data.frame ive tried DF$col[POS]-number DF[xPOS,yPOS]-number See