Displaying 2 results from an estimated 2 matches for "linearily".
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2001 Sep 06
2
Array as time series?
...in different objects:
1. a four-dimensional array for the spatial related analyses
2. a two-dimensional mts timeserie, which was derived from 1. by
computing spatial means.
But, still this doesn't help for combined spatio-temporal analysis.
One could regard the time dimension as just another linearily spaced
dimension in the four-dimensional array, but when it comes analyses and
graphics output it gets complicated, since one can't use all timeseries
(ts-) related functions (require ts attributes).
Could you provide me some comments, workarounds or your experiences on
similar problems.
Than...
2004 Aug 06
3
Simple Lookup... why so slow
Dear List,
At 32 degrees Celsius in the office, I was too lazy to figure out
the correct xapplytion for a simple lookup problem
and regressed to well-known c-style. Only to see my
computer hang forever doing 10000 indexed offset calculation.
Boiled down, the problem is shown below; needs a few milliseconds
in c. Looking at the timing results of n=2000 and n=4000,
this is not linear in time, so