Skip to content

Commit

Permalink
Updated changelog for 0.1.0, put in README.
Browse files Browse the repository at this point in the history
I forgot to update the change log for verision 0.1.0.

It seems that the version number should be seen on GitHub,
so I added the last changelog to it.
  • Loading branch information
rlabbe committed Dec 27, 2015
1 parent 24c68db commit d9e84e2
Show file tree
Hide file tree
Showing 2 changed files with 51 additions and 0 deletions.
26 changes: 26 additions & 0 deletions README.rst
Original file line number Diff line number Diff line change
Expand Up @@ -204,6 +204,32 @@ you have that experience, this book is a gem. Every sentence is crystal
clear, his language is precise, but each abstract mathematical statement
is followed with something like "and this means...".


Last Changelog Entry
--------------------

Version 0.1.0

Move to minor version numbering doesn't mean anything other than
it got absurd to be using 3 digits for version numbers. We are
far past alpha here. I will be moving to 1.0.0 soon, probably after
I finish the book and flesh out a few points.

* Implemented a fixed-point smoother, but it is not working all that well.

Color on this: There are various recusive equations for the fixed point
filter that I have found in various book - Simon, Crassidis, and Grewal.
None seem to work very well. I have code that works pretty good when R
is < 0.5 or so, but then the filter diverges when R is larger. I'm not seeing
much in the literature that explains this very well, nor any evidence of
this smoother actually being used in practice. I will give this a bit
more effort, and if I can't get something reliable I'll put it in a branch
and remove from trunk. Someone will have to tackle this on a rainy day.

* KalmanFilter.batch_filter() now accepts lists of all the KF matrices

* lots of docstring corrections and additions

License
-------

Expand Down
25 changes: 25 additions & 0 deletions filterpy/changelog.txt
Original file line number Diff line number Diff line change
@@ -1,3 +1,28 @@
Version 0.1.0
==============

Move to minor version numbering doesn't mean anything other than
it got absurd to be using 3 digits for version numbers. We are
far past alpha here. I will be moving to 1.0.0 soon, probably after
I finish the book and flesh out a few points.

* Implemented a fixed-point smoother, but it is not working all that well.

Color on this: There are various recusive equations for the fixed point
filter that I have found in various book - Simon, Crassidis, and Grewal.
None seem to work very well. I have code that works pretty good when R
is < 0.5 or so, but then the filter diverges when R is larger. I'm not seeing
much in the literature that explains this very well, nor any evidence of
this smoother actually being used in practice. I will give this a bit
more effort, and if I can't get something reliable I'll put it in a branch
and remove from trunk. Someone will have to tackle this on a rainy day.

* KalmanFilter.batch_filter() now accepts lists of all the KF matrices

* lots of docstring corrections and additions



Version 0.0.28
==============

Expand Down

0 comments on commit d9e84e2

Please sign in to comment.