[R] how to slice a zoo object

Hi Would anyone have any pointers on how to slice up a large zoo table. I have the following structure: - str(ZOO_OBJ)  zoo [1:632, 1:83] 30.4 30.4 30.4 30.4 30.3 ...  - attr(*, dimnames)=List of 2   ..$ : NULL   ..$ : chr [1:83] COL1 COL2 COL3 COL4 ...  - attr(*, index)= POSIXct[1:632],

Re: [R] how to slice a zoo object

I've solved my own problem using ZOO_OBJ[,COL2, COL5]. The trick was preceding the list of names with a comma as described in the standard ts document. On Mon, Jan 24, 2011 at 9:51 AM, Blair Sutton blai...@gmail.com wrote: Hi Would anyone have any pointers on how to slice up a large zoo table

Re: [R] how to slice a zoo object

My previous post had a typo. So as not to confuse future readers of the list it should have read ZOO_OBJ[,cbind(COL2, COL5)]. Thanks Gabor. On Mon, Jan 24, 2011 at 10:54 AM, Blair Sutton blai...@gmail.com wrote: I've solved my own problem using ZOO_OBJ[,COL2, COL5]. The trick was preceding

[R] Finding points where two timeseries cross over

Hi Is there any way to find out at what points two timeseries cross over perhaps with some information on how they cross? Alternatively, I could write a loop that solves pairs of adjacent points using linear algebra but looking for a simpler way. Thanks in advance, Blair [[alternative