Commit Graph

105 Commits (7dd2dd5e24a343fbeaf3522ea5e535c27d8b9f95)

Author SHA1 Message Date
Johannes Pfeifer 93ae4849b7 missing_observations_kalman_filter.m: remove unused output whose dimensions grow over time 2022-05-25 12:55:05 +02:00
Sébastien Villemot 10af04c6d8
Use Unicode copyright symbol (in UTF-8 encoding) in all source files
It is now supported by the MATLAB editor (as of R2022a).

The old ASCII notation is left in some files that we copy as-is from other
sources (e.g. in the contrib/ and m4/ subdirectories).

The particles submodule is not updated at this point, because it is in an
inconsistent state.

[skip ci]
2022-04-13 14:54:25 +02:00
Johannes Pfeifer 1bfb9ffbb9 heteroskedastic shocks: take into account first_obs 2021-12-14 11:21:16 +01:00
Sébastien Villemot 229282a1c4
Occbin: the +<basename>/occbin_difference.m file is now generated by the preprocessor
Some fields have also changed under M_.occbin.

Ref. #569
2021-07-20 12:35:15 +02:00
Marco Ratto 02072dde39
Add Occbin routines
Syntax is not yet finalized (see preprocessor#68).
Documentation still to be done.

Ref. #569
2021-07-16 17:20:11 +02:00
Sébastien Villemot 766fff88f6
Use secure URL for link to GNU licenses 2021-06-09 17:35:05 +02:00
Marcoo Ratto 1645f38269
Implement heteroskedastic filter and smoother 2021-05-26 18:45:16 +02:00
Sébastien Villemot 565d61aad3
Merge branch 'kalman_analytic_bug' of git.dynare.org:JohannesPfeifer/dynare 2021-01-22 18:32:42 +01:00
Johannes Pfeifer c6c9b4e356 kalman_filter.m: fix bug when using analytic_derivation 2021-01-22 14:54:17 +01:00
Johannes Pfeifer 869147c13a Kalman filter functions: clarify header comments 2021-01-18 17:33:21 +01:00
Marco Ratto 73291b0b19 before issuing F singularity, check with rescaled F matrix: this spares lots of computing time when singularity only happens in the first KF step. 2020-01-24 14:17:26 +01:00
Sébastien Villemot 7a75872f72
Modernization: use tilde (~) syntax for ignored output arguments 2018-11-13 18:02:09 +01:00
Stéphane Adjemian (Charybdis) c4f1958690 Cosmetic changes + Copyright headers fixes. 2018-01-26 12:00:27 +01:00
Johannes Pfeifer b933a440bf Add debugging info to Kalman filter routines 2018-01-26 11:47:39 +01:00
Marco Ratto b9741548b0 As we do for the smoother, check the rank of Pinf only for the observables (i.e. using Z*Pinf*Z') 2018-01-26 11:47:39 +01:00
Stéphane Adjemian (Charybdis) 1bf81c9f5a Fixed copyright notices. 2017-05-18 18:36:38 +02:00
Stéphane Adjemian (Charybdis) 5417b27ac7 Fixed indentation of matlab files. 2017-05-16 15:10:20 +02:00
Stéphane Adjemian (Charybdis) a53636e24e Fixed copyright notices. 2017-05-16 14:11:15 +02:00
Stéphane Adjemian (Charybdis) 88e1701289 Removed useless commas and semicolons. 2017-05-16 13:24:46 +02:00
Stéphane Adjemian (Charybdis) c1b6a58eb7 Manually revert 05fc096569.
Robust prediction error covariance matrix computation is now optional (with
rescale_prediction_error_covariance option).

Closes #1437.
2017-04-27 10:44:27 +02:00
Johannes Pfeifer e3aecd4e74 Diffuse Kalman filter: add comment for better comparison to Koopman/Durbin (2003) as there is a typo in their paper 2016-11-04 09:21:53 +01:00
Johannes Pfeifer 57d600301b Correct description of Kstar 2016-11-04 09:21:53 +01:00
Johannes Pfeifer 73d0a82267 Add comment on logic of singularity testing in univariate_kalman_filter_d.m
See discussion on mailing list 18/06/2016
2016-08-22 19:24:35 +02:00
Johannes Pfeifer 8dc96cafa4 If F is identically 0 in Kalman filter, discard parameter draw instead of treating current observation as unobserved
See discussion on mailing list 18/06/2016
2016-08-22 19:24:35 +02:00
Johannes Pfeifer 36ccec75ce Add missing constant 2*pi to missing_observations_kalman_filter_d.m 2016-08-22 19:24:35 +02:00
Johannes Pfeifer f95619b46a Add header info to univariate_kalman_filter.m 2016-08-22 19:24:35 +02:00
Johannes Pfeifer 15f95cec4a Add comments to Kalman filtering routines 2016-08-22 19:24:35 +02:00
Houtan Bastani 25121bca4f fix copyright dates 2016-05-04 16:05:31 +02:00
Johannes Pfeifer 8908d46567 Initialize s to make sure univariate_kalman_filter_d.m does not crash if newRank is 0 initially 2016-04-14 20:11:49 +02:00
Michel Juillard 953ac851c0 & into && 2015-11-09 09:03:55 +01:00
Marco Ratto 93e7be66e7 proper use on diffuse_kalman_tol in univariate diffuse filter and smoother 2015-10-13 17:28:29 +02:00
Marco Ratto 05fc096569 Make multivariate kalman filter and smoother robust to badly scaled covariance matrix of observables.
This avoids shifting to univariate filter in most cases.
2015-10-13 17:15:01 +02:00
Marco Ratto ca8f0ea006 Harmonize filters/likelihood with smoothers by using new option diffuse_kalman_tol 2015-04-08 15:49:12 +02:00
Marco Ratto 5297836577 Harmonize criteria for exiting diffuse steps in likelihood with the smoother.
Since initial Pinf is well scaled to unity, crit1= 1.e-6 is used for smoother and should also apply to likelihood evaluations.
2015-04-03 18:02:03 +02:00
Stéphane Adjemian (Scylla) 89fa0ae9b6 Fixed typo. 2014-09-11 17:33:42 +02:00
Marco Ratto a6bddb2d57 Improve computation of outer product gradient for univariate Kalman algorithms, by exploiting the larger number of individual densities computed during recursions (used in optimizer number 5). 2014-07-23 16:33:39 +02:00
Sébastien Villemot 61485ab809 Fix copyright notices 2013-06-12 17:04:46 +02:00
Johannes Pfeifer 1df8bf15c2 Bugfix in rplot + typo correction 2013-03-18 10:59:32 +01:00
Michel Juillard bbd95b3a60 adding Ed Herbst fast implementation of the Kalman filter and test
cases with timing. Still needs preprocessor interface (option) and documentation.
2013-02-21 17:47:16 +01:00
Marco Ratto e637319be5 bug fix. the diffuse filter should simply penalize the likelihood with the NaN without breaking the estimation (this is in line with missing_observations_kalman_filter_d.m). 2012-09-14 17:05:35 +02:00
Marco Ratto 6b91301365 Reduce memory requirements for analytic Hessian.
Tested with QUEST III (Ratto et al. 2009): 63 params and 59 state dimension.
2012-08-21 16:00:55 +02:00
Marco Ratto 7683175e8e Bug fix in terms for outer product gradient with analytic derivatives 2012-08-21 15:45:25 +02:00
Marco Ratto f7aae77f16 removed useless elements + reduce loops for efficiency
(cherry picked from commit f2271264994af253ccdc7f01478320e4d2c2c0e7)
2012-08-13 13:04:34 +02:00
Ferhat Mihoubi 307d5d5d6a Initializes the s variable 2012-07-01 15:19:36 +02:00
Michel Juillard 2fa433f18e fixing bug for estimation of models with measurement errors and
missing observations
2012-06-19 16:35:44 +02:00
Sébastien Villemot 129553579a Merge remote-tracking branch 'ratto/master' 2012-06-08 18:24:18 +02:00
Sébastien Villemot 1f9cea669a Update copyright notices 2012-06-08 18:22:34 +02:00
Marco Ratto bf88b6e93d LIKK needs to be initialized when analytic derivation =0. 2012-06-08 17:06:59 +02:00
Marco Ratto 2fecf9946b 1) Extended optimizer = 5 for analytic derivatives;
2) Start adapting identification routines to allow computation of analytic asymptotic Hessian with KF routines
2012-06-08 14:23:18 +02:00
Michel Juillard c15123878f fixed rare bug in Kalman filter when one should switch to steady state
filter in last period of the sample
2012-05-10 11:09:06 +02:00