JuliaControl / JuliaControl/SymbolicControlSystems.jl
Substituting in StateSpace
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- Dominant language
- Julia
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Description
I am trying so substitute a variable inside a StateSpace{Continous,Num}.
julia> Σᵤ
StateSpace{Continuous, Num}
A =
0 1 0
0 1 + k₁ 1 + k₂
kᵢ 1 + k₃ k₄
B =
0
1
0
C =
kᵢ 1 + k₁ + k₃ k₂ + k₄
D =
1
julia> substitute(Σᵤ, Dict( kᵢ=> -3))
StateSpace{Continuous, Num}
A =
0 1 0
0 1 + k₁ 1 + k₂
kᵢ 1 + k₃ k₄
B =
0
1
0
C =
kᵢ 1 + k₁ + k₃ k₂ + k₄
D =
1
Continuous-time state-space model
but the system is unchanged. Is there a better way to go about this?
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the StateSpace and substitute example from the issue in Julia. Inspect how substitution is handled for StateSpace values, then verify that substituting kᵢ with -3 changes the resulting system while preserving the other symbolic terms.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- backend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100