20 July 1969 | 667 per cm

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20 July 1969

Posted on 20 July 2019 by ecoquant

IBM and the Apollo missions.

I worked at IBM Federal Systems Division in Owego, NY from May, 1976 to March of 1994. I did a lot with the IBM System/4 Pi and its operating and support software.

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← Shifting to a Sustainable Future (Professor Steven Chu)

“Between grounded hope and radical hope, that’s what we’re going to need for climate change.” →

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Kalman filtering and smoothing; dynamic linear models

Also, see datasets and R examples to accompany this excellent text.

I have used dlm almost exclusively, except when extreme efficiency was required. Since Jouni Helske's KFAS was rewritten, though, I'm increasingly drawn to it, because the noise sources it supports are more diverse than dlm's. KFAS uses the notation and approaches of Durbin, Koopman, and Harvey.

``The real problem is that programmers have spent far too much time worrying about efficiency in the wrong places and at the wrong times; premature optimization is the root of all evil (or at least most of it) in programming.''
Professor Donald Knuth, 1974
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