[R] strucchange: breakpoints in inequally spaced data
thpe at hhbio.wasser.tu-dresden.de
Fri Jul 16 17:52:14 CEST 2004
we want to identify breakpoints (different phases) in environmental
data, algae cell counts of three years with intervals between 7 and 30
days (N=40). We found that
works great and identifies 5 very good breaks, however we are uncertain
about these, because the data are unequally spaced. Is there a way to
include the information about the measurement intervals, e.g.
breakpoints(cells[-1] ~ diff(time))
Furthermore we wonder, why the OLS-CUSUM indicates several of these
breakpoints but does not mark them as significant.
Thanks in advance!
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