Skip to content

Releases: bashtage/arch

Release 4.8

27 Mar 15:26
e8251a0
Compare
Choose a tag to compare

This is a feature and bug release. Highlights include:

  • Added Zivot-Andrews unit root test.
  • Added data dependent lag length selection to the KPSS test.
  • Added IndependentSamplesBootstrap to bootstrap inference on statistics from independent samples that may
    have uneven length.
  • Added arch_lm_test to ARCH-LM tests on model residuals or standardized residuals.
  • Fixed a bug in ADF when applying to very short time series.
  • Added ability to set the random_state when initializing a bootstrap.

Release 4.7

13 Dec 09:09
2f1f6c9
Compare
Choose a tag to compare

This is a feature and bug release:

  • Added support for Fractionally Integrated GARCH (FIGARCH)
  • Enable user to specify a specific value of the backcast in place of the automatically generated value.
  • Fixed a big where parameter-less models where incorrectly reported as having constant variance

Release 4.6.0

03 Oct 11:43
4a1130e
Compare
Choose a tag to compare

This is a feature release with 1 new feature:

  • Add support for MIDAS volatility processes with Hyperbolic weighting

Release 4.5.0

28 Sep 16:32
Compare
Choose a tag to compare

This is a feature release with 1 new feature:

  • Added a parameter to forecast that allows a user-provided callable random
    generator to be used in place of the model random generator

Release 4.4.1

14 Aug 14:11
Compare
Choose a tag to compare

Packing only release to fix an issue on PyPi.

Release 4.4

14 Aug 08:25
6181efe
Compare
Choose a tag to compare

This is a minor release containing mostly bug fixes.

Changes include:

  • Added named parameters to Dickey-Fuller regressions.
  • Removed use of the module-level NumPy RandomState. All random number generators use separate RandomState instances.
  • Fixed a bug that prevented 1-step forecasts with exogenous regressors
  • Added the Generalized Error Distribution for univariate ARCH models
  • Fixed a bug in MCS when using the max method that prevented all included models from being listed

Release 4.3.1

14 Dec 09:12
8af6161
Compare
Choose a tag to compare
  • Fix GED in arch_model

Release 4.3

13 Dec 22:17
Compare
Choose a tag to compare
  • Fixed a bug that prevented 1-step forecasts with exogenous regressors
  • Added the Generalized Error Distribution for univariate ARCH models
  • Fixed a bug in MCS when using the max method that prevented all included models from being
    listed
  • Added FixedVariance volatility process which allows pre-specified variances to be used with
    a mean model. This has been added to allow so-called zig-zag estimation where a mean model is
    estimated with a fixed variance, and then a variance model is estimated on the residuals using
    a ZeroMean variance process.

Release 4.2

03 Sep 22:54
Compare
Choose a tag to compare

Release containing all changes since 4.1 including:

  • Fixed a bug that prevented fix from being used with a new model (:issue:156)
  • Added first_obs and last_obs parameters to fix to mimic fit
  • Added ability to jointly estimate smoothing parameter in EWMA variance when fitting the model

Release 4.1

21 Mar 14:16
Compare
Choose a tag to compare

Minor release with bug fixes and the FixedVariance process.
Adds support for 3.6 in anaconda.org.