ControlSystems.jl
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New vcat not working
a = 1
s = zpk("s")
base = ss((a-s)/(a+s))
Qq = [ss(1.);base;[balreal(base^k)[1] for k = 2:10-1]] # Does not work
Qq = [ss(1.);base;[balreal(base^k)[1] for k = 2:10-1]...] # Works
Still a problem 2019-01-30 Still a problem 2020-10-10
ERROR: MethodError: Cannot `convert` an object of type Array{StateSpace{Float64,Array{Float64,2}},1} to an object of type StateSpace{Float64,Array{Float64,2}}
Closest candidates are:
convert(::Type{StateSpace{T,MT}}, ::AbstractArray{#s28,2} where #s28<:Number) where {T, MT} at /local/home/fredrikb/.julia/dev/ControlSystems/src/types/conversion.jl:25
convert(::Type{StateSpace{T,MT}}, ::Number) where {T, MT} at /local/home/fredrikb/.julia/dev/ControlSystems/src/types/conversion.jl:36
convert(::Type{StateSpace{T,MT}}, ::StateSpace) where {T, MT} at /local/home/fredrikb/.julia/dev/ControlSystems/src/types/conversion.jl:58
...
Stacktrace:
[1] _broadcast_getindex_evalf at ./broadcast.jl:582 [inlined]
[2] _broadcast_getindex at ./broadcast.jl:565 [inlined]
[3] (::getfield(Base.Broadcast, Symbol("##17#18")){Base.Broadcast.Broadcasted{Base.Broadcast.Style{Tuple},Nothing,typeof(convert),Tuple{Base.RefValue{Type{StateSpace{Float64,Array{Float64,2}}}},Tuple{StateSpace{Float64,Array{Float64,2}},StateSpace{Float64,Array{Float64,2}},Array{StateSpace{Float64,Array{Float64,2}},1}}}}})(::Int64) at ./broadcast.jl:954
[4] ntuple at ./tuple.jl:158 [inlined]
[5] tuplebroadcast at ./broadcast.jl:954 [inlined]
[6] copy at ./broadcast.jl:952 [inlined]
[7] materialize at ./broadcast.jl:756 [inlined]
[8] _cat_t at /local/home/fredrikb/.julia/dev/ControlSystems/src/connections.jl:115 [inlined]
[9] #cat_t#99 at ./abstractarray.jl:1353 [inlined]
[10] #cat_t at ./none:0 [inlined]
[11] _cat at ./abstractarray.jl:1351 [inlined]
[12] #cat#100 at ./abstractarray.jl:1480 [inlined]
[13] #cat at ./none:0 [inlined]
[14] vcat(::StateSpace{Float64,Array{Float64,2}}, ::StateSpace{Float64,Array{Float64,2}}, ::Array{StateSpace{Float64,Array{Float64,2}},1}) at ./abstractarray.jl:1418
[15] top-level scope at none:0