I found a faster implementation (by an order of magnitude from my
tests) than the one using xts, split, merge (from Joshua).
I report the two fastest solution below with code to generate a test
case; some work still to be done for columns order and naming,
Test case has grown from my previous post
I found a faster implementation (by an order of magnitude from my
tests) than the one using xts, split, merge (from Joshua).
I report the two fastest solution below with code to generate a test
case; some work still to be done for columns order and naming,
Test case has grown from my previous post
I retrieve for a few hundred times a group of time series (10-15 ts
with 1 values each), on every group I do some calculation, graphs
etc. I wonder if there is a faster method than what presented below to
get an appropriate timeseries object.
Making a query with RODBC for every group I get a
Hi Dan,
On Mon, Apr 4, 2011 at 7:49 AM, Den Alpin den.al...@gmail.com wrote:
I retrieve for a few hundred times a group of time series (10-15 ts
with 1 values each), on every group I do some calculation, graphs
etc. I wonder if there is a faster method than what presented below to
get an
On Mon, Apr 4, 2011 at 8:49 AM, Den Alpin den.al...@gmail.com wrote:
I retrieve for a few hundred times a group of time series (10-15 ts
with 1 values each), on every group I do some calculation, graphs
etc. I wonder if there is a faster method than what presented below to
get an
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
On Mon, Apr 4, 2011 at 11:20 AM, Den Alpin den.al...@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
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