kalman filter - python implementation
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From: Jerry Avins on 9 Jun 2010 15:52 On 6/9/2010 11:24 AM, Michael wrote: > Jerry, > > I did not insult the poster or the fact the he is using Python as his programming language of choice - "brickbats" is harsh to say the least. I am, however, keenly aware of the tone of his last message. > > It is okay to be frustrated with a problem you are trying to solve, but extending it into a public forum where you ask individuals for their time and their experiences to help is another. > > > Michael. > -- > Finding Nemo, Sharkbait - "He's probably American!" > > --- > frmsrcurl: http://compgroups.net/comp.dsp/kalman-filter-python-implementation Michael, Yours was neither the first nor the more offensive letter critical of his choice of language. Assume that his annoyance arose from the accumulation, not from your response alone. We tend to observe certain standards here, communicating in English and Matlab chief among them. Nevertheless, we all should recognize that this is an international forum and that there are many legitimate programming languages. All that said, nobody here is under any obligation to read a long program or routine. When a question begins with a few pages of code in any language, I usually ignore it. Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������
From: Erik de Castro Lopo on 9 Jun 2010 18:34 Tim Wescott wrote: > Matlab is _expensive_. Octave is a cheap alternative. > While it delivers considerable value, there are > free alternatives that do as well or better than Matlab. From a > standpoint of how much you gain vs. how much you pay, Matlab is _horrible_. I agree. For prototyping in a high level language I usually use Ocaml or Haskell, but I would never expect anyone not familiar with those languages to look at my code. Erik -- ---------------------------------------------------------------------- Erik de Castro Lopo http://www.mega-nerd.com/
From: Tim Wescott on 9 Jun 2010 19:11 On 06/09/2010 03:34 PM, Erik de Castro Lopo wrote: > Tim Wescott wrote: > >> Matlab is _expensive_. > > Octave is a cheap alternative. > >> While it delivers considerable value, there are >> free alternatives that do as well or better than Matlab. From a >> standpoint of how much you gain vs. how much you pay, Matlab is _horrible_. > > I agree. > I started using Scilab when the Octave project was in a shambles. Now the Scilab project is behind (still no debugger...) but I'm used to it. -- Tim Wescott Control system and signal processing consulting www.wescottdesign.com
From: grzegorz g. on 29 Jun 2010 17:51
thx for help. the problem was a state matrix (A). after transposition it's ok (stupid error however difficult to find ... first good predictions made me think that matrices were ok) |