I have a zoo object (matrix), MyData, that looks like this.
AAPL.Adjusted SHY.Adjusted
2013-05-01 60.31 84.12
2013-05-02 61.16 84.11
2013-05-03 61.77 84.08
2013-05-06 63.25 84.08
.... .... .....
When I try to do something like:
EMA(myData, n = 5)
I get a vector result of the first column only. I know how to pull myData apart into vectors, run EMA on each, and put it back together into a zoo matrix, but this seems arcane. What syntax do I use to make the EMA filter run on all columns of my data matrix, myData? Thanks for any help. I’m sure it is obvious but ... ??