Displaying 1 result from an estimated 1 matches for "mc_pheno".
2012 Feb 14
1
cumsum function to determine plankton phenology
...species abundance data sampled at a weekly frequency or
sometimes monthly depending on the year.
The goal is to identify the dates in an annual cycle in which the
cumulative abundance of a species reaches some threshold.
Here's an example of the data for 1 species over an annual period:
"mc_pheno" is the object created from this data:
zoo_date sp
1/8/1988 13.2
1/20/1988 11.6
2/3/1988 8.7
2/17/1988 10.7
3/3/1988 2.5
3/21/1988 2.2
4/12/1988 0.6
5/2/1988 0.3
5/10/1988 0.6
5/25/1988 0.8
6/8/1988 0.8
6/28/1988 3.8
7/5/1988 11.2
7/20/1988 9.3
8/3/1988 31.1
8/17/1988 50.9
9/6/1988 225
9/15/1...