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2012 Mar 05
1
index instead of loop?
Hello,
Does anyone know of a way I can speed this up? Basically I'm attempting to
get the data item on the same row as the report date for each report date
available. In reality, I have over 11k of columns, not just A, B, C, D and
I have to do that over 100 times. My solution is slow, but it works. The
loop is slow because of merge.
# create sample data
z.dates =
2012 Sep 13
6
[newbie] aggregating table() results and simplifying code with loop
Dear all,
I'm looking for primary help at aggregating table() results and at
writing a loop (if useful)
My dataset ( http://goo.gl/gEPKW ) is composed of 23k rows, each one
representing a point in the space of which we know the land cover over
10 years (column y01 to y10).
I need to analyse it with a temporal sliding window of 5 years (y01 to
y05, y02 to y06 and so forth)
For each period