v0.22.0

Optim v0.22.0

Diff since v0.21.0

Closed issues:

• Complex optimization example of documentary not working (#817)

Merged pull requests:

• Fix minor bugs (#815) (@amanbh)
• Fix MatlabSimplexer example code in docs (#819) (@Gyoshi)
• Don't print vectors, it's hardly useful and gives problems with forma… (#825) (@pkofod)
• Update .travis.yml (#826) (@pkofod)

v0.21.0

Optim v0.21.0

Diff since v0.20.6

Closed issues:

• Document KrylovTrustRegion (#737)
• Inconsistencies with fg! in Krylov vs LBFGS (#738)
• New minor release for StatsBase v0.33 compatibility? (#803)
• numerical values for alphaguess (#805)
• V1.4 tests fail (#810)

Merged pull requests:

• only_* constructors for newton-krylov (#742) (@tlienart)
• Support creation of TwiceDifferentiable from IPNewton methods (#808) (@timholy)
• Skip updates if dx_dg is non-positive in BFGS (#809) (@pkofod)
• Use inversediagonal in precon test. (#811) (@pkofod)
• Add simple InitialStatic alpha choice by providing just a number to t… (#812) (@pkofod)

v0.20.6

Optim v0.20.6

Diff since v0.20.5

Closed issues:

• Gradients not working correctly with Double64 type from DoubleFloats (#761)
• Unused return value from update_state!() in optimize() (#789)
• brent returns spurious minimum (#798)
• It seems like dot is being incorrectly overwritten (#801)

Merged pull requests:

• Update the documentation of the callback function. (#795) (@hcarlsso)
• fix Brent for flat functions (#799) (@bjarthur)
• Fix typo in IPNewton docs (#800) (@rcurtin)

v0.20.5

Update Project.toml

v0.20.4

v0.20.4 (2020-03-14)

Diff since v0.20.3

Closed issues:

• Least square minimization (#797)

Merged pull requests:

• Update krylov_trust_region.jl (#794) (pkofod)

v0.20.3

v0.20.3 (2020-03-10)

Diff since v0.20.2

Merged pull requests:

• Convert initial radius to match types (#793) (ChrisRackauckas)
• fix printf syntax in error message (#792) (tpapp)

v0.20.2

v0.20.2 (2020-03-03)

Diff since v0.20.1

Closed issues:

• Maximizing a complicated nonlinear logliklihood function (#787)
• Nelder-Mead stopping condition (#759)
• Roadmap-ish stuff (#662)
• linesearch warning (#579)
• Trust-Region code does not handle the hard case (#540)
• Finite Difference: Remove Calculus when DiffEqDiffTools Hessians are implemented (#519)
• Type instability in result object (#510)
• Feature request: Callback function gets passed current best solution (#452)
• optimize with autodiff accumulates calls counter (#443)

Merged pull requests:

• Use Compat.jl for dot. (#791) (pkofod)
• Fix swapped relative and absolute tolerances (#788) (gwater)

v0.20.1

v0.20.1 (2020-01-30)

Diff since v0.20.0

Merged pull requests:

• Handle Inf values in NewtonTrustRegion (#781) (andreasnoack)

v0.20.0

v0.20.0 (2020-01-23)

Diff since v0.19.7

Closed issues:

• OneDifferenciable strange error (#769)
• Parallel Auto Differentiation (#760)
• Documentation suggests no support for global optimizaiton (#731)

Merged pull requests:

• Fix typo (#779) (hsm207)
• Fix typo (#777) (hsm207)
• Normalized multidimensional arrays (#776) (thisrod)
• Fixes for OptimTestProblems.UnconstrainedProblems (#773) (rasmushenningsson)
• Update Project.toml (#772) (pkofod)
• Remove AD imports (#771) (pkofod)
• Remove Calculus from Project.toml (#770) (pkofod)

v0.19.7

v0.19.7 (2019-12-06)

Diff since v0.19.6

Merged pull requests:

• Make sure that lambda is large enough to make Hessian positive definite (#768) (andreasnoack)