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I started to compare some trip stuff with foieGras and ran into the ole duplicated times thing in the ellie data - what do you generally do about that? What happens with dividing by zero durations and so forth? I noticed long ago that argosfilter just fudges over it with an epsilon but I consider that a mistake. ??
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yeah, that's a good, old chestnut. prefilter() currently flags subsequent observations with the same time to be ignored by the SSM, otherwise you run into estimation issues with the process error variances - multiple quantum states, dividing by 0 time, choose your poison... Still a fudge but there's no info to determine which is the most likely - maybe in the more detailed CLS Argos files but most people have dropped all those extra details by the time they come to fitting a model. I noticed that the crawl folks recommend adding small time increments to each duplicate but this also doesn't seem right
I started to compare some trip stuff with foieGras and ran into the ole duplicated times thing in the ellie data - what do you generally do about that? What happens with dividing by zero durations and so forth? I noticed long ago that argosfilter just fudges over it with an epsilon but I consider that a mistake. ??
The text was updated successfully, but these errors were encountered: