v0.8.0

News:

• [breaking] stepplot, lsimplot, impulseplot now have the same signatures as their corresponding non-plotting functions.
• New function d2c (inverse of c2d).
• New method :fwdeuler for c2d (and d2c).
• Styles of plots will now use the current default theme set in Plots instead of a custom style.
• The controller function in lsim can now return a scalar if the system has a single input.
• Bugfixes

v0.7.0

This version introduces a new type TimeEvolution to represent what was previously called Ts, i.e., the sample time for a discrete system or continuous (previously indicated by Ts = -1. You can still access the sample time for a discrete systems with the property .Ts.

This new type is part of the type definition of LTIsystems, i.e., the full type of a state-space object is now on the form

julia> ss(1)
StateSpace{Continuous,Int64,Array{Int64,2}}
D = 
 1

Continuous-time state-space model

Some new functions:

• timeevol(Lti) -> TimeEvolution (not exported)
• isdiscrete

v0.6.0

Merge pull request #306 from JuliaControl/baggepinnen-patch-1

Update Project.toml

v0.5.9

Update Project.toml

Plots 1 compat

v0.5.8

• Bugfixes and more customization for plots
• Bump compat for Plots

v0.5.7

v0.5.7 (2020-03-14)

Diff since v0.5.6

Closed issues:

• Bode plot has weird magnitude scale (#267)
• Error printing type to REPL (#263)

Merged pull requests:

• Bump version and compat (#271) (mfalt)
• Documenting setPlotScale\(str\) in bodeplot (#269) (freemin7)
• Update plotting.jl (#265) (baggepinnen)

v0.5.6

v0.5.6 (2020-01-21)

Diff since v0.5.5

Closed issues:

• Delay bug (#253)

Merged pull requests:

• Bump version (#255) (mfalt)
• bugfix: Fixes #253, misplaced 2 in *(Number, DelayLTISystem). (#254) (olof3)

v0.5.5

v0.5.5 (2020-01-05)

Diff since v0.5.4

Merged pull requests:

• Update Project.toml to 0.5.5 (#252) (mfalt)
• Update .travis.yml (#248) (baggepinnen)
• prevent promotion to Float64 in unwrap (#247) (baggepinnen)
• CompatHelper: bump compat for "Colors" to "0.11" (#245) (github-actions[bot])
• Integer systems to float zpk (#244) (mfalt)
• CompatHelper: bump compat for "Colors" to "0.10" (#243) (github-actions[bot])
• Norminf refactor (#242) (olof3)
• CompatHelper: bump compat for "Plots" to "0.28" (#240) (github-actions[bot])
• Create CompatHelper.yml (#238) (mfalt)

v0.5.4

v0.5.4 (2019-11-13)

Diff since v0.5.3

Closed issues:

• Is that a bug? PID and delay system. (#232)
• showterm2 function out of date (#229)
• pidplots returns nothing unless :controller in args (#226)
• Fractional control support (#225)
• Stack overflow for inverse of delayed system (#217)

Merged pull requests:

• Added lower bounds on packages (#239) (mfalt)
• Release 0.5.4 option2 (#236) (mfalt)
• Proposed 0.5.4 version (#234) (mfalt)
• Daretest (#233) (mfalt)
• update of showterm2 due to 'j' parameter removed from Polynomials.printsign (#230) (andrersimoes)
• Fix pidplots for cases where plot type is not :controller (#227) (non-Jedi)
• Remove defenition of dlqr for vector case (#223) (mfalt)
• Moredelays (#220) (baggepinnen)
• WIP Fixplots and example (#219) (mfalt)
• Delayfixes (#218) (baggepinnen)
• Better tol in delay solve (#216) (baggepinnen)
• Delay lti2 (#191) (mfalt)
• WIP: Delayed LTI (#178) (mfalt)
• Update DARE (#173) (HppyCtrlEngnrng)

AbstractStatespace

See Readme for news