Displaying 2 results from an estimated 2 matches for "zoo_obj".
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bootobj
2011 Jan 24
2
how to slice a zoo object
Hi
Would anyone have any pointers on how to slice up a large zoo table. I
have the following structure: -
> str(ZOO_OBJ)
?zoo [1:632, 1:83] 30.4 30.4 30.4 30.4 30.3 ...
?- attr(*, "dimnames")=List of 2
??..$ : NULL
??..$ : chr [1:83] "COL1" "COL2" "COL3" "COL4" ...
?- attr(*, "index")= POSIXct[1:632], format: "2009-05-01 01:00:00"
"2009-05-02...
2010 Jan 08
2
time series analysis for a time series without a regular frequency
Hello,
I am trying to conduct a time series analysis on historic hydrologic data,
but I cannot coerce it into class ts because it does not have regular
sampling intervals (some years have 20 samples, other have 8). Specifically
I am trying to perform a CUSUM or or other step change detection, but the
packages all seem to require data as ts.
Is there a way to coerce my data into ts while