How to speed up grouping time series, help please
On Mon, Apr 4, 2011 at 11:20 AM, Den Alpin <den.alpin at gmail.com> wrote:
I did some tests on Your and Gabor solutions, below my findings: - Your solution is fast as my solution in xts (below) but MUCH MORE READABLE, in particular I think your test should take into account xts creation from the data.frame (see below); - Gabor's solution with read.zoo is fast as xts but give an xts object that has some problems with time zones.
read.zoo gives a zoo object, not an xts object. If you want an xts object try as.xts(z). If you were expecting an xts object that may be the source of your other problems.
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