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How do you create a timeDate sequence with
the latest date as the first element and oldest date the last element, AND
exclude weekends (utilizing Splus 6.1)? The following efforts were
unsuccessful:
td = timeSeq(from="9/15/2003", to = "4/15/2003",
by=-"bizdays")
td = timeSeq(from="9/15/2003", to="4/15/2003", by
= "bizdays")
or
td1 = timeSeq(from="4/15/2003", to"9/15/2003",
by="bizdays")
td = -sort(-td1) [ sort does not work with timeDate
sequences]
Is it really necessary to inelegantly process td1 in a for
loop --- which does work ? e.g.
td = td1
for( i in 1:length(td1) ) td[
length(td1) -i +1 ] = td1[ i ] }
Incidentally this is a very slow processing.
Paul H. Lasky
B & P Consultants
Rancho Santa Fe, CA
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