GHE-HS
commented
9 months ago I think I found the piece of code that is responsible for this transformation but fixing it is beyond what I can do I'm afraid: In model_parsing.jl, l 73-77:
if ext[] === nothing
push!(exprs.args, :(var"#___sys___" = $sys))
else
push!(exprs.args, :(var"#___sys___" = $extend($sys, $(ext[]))))
endAny advice will be appreciated!
ChrisRackauckas
Describe the bug π
When
structural_simplifying a system, the names of many observed variables (ie. variableX(t)) becomevar"XΛt"in an equation describing an observed state, messing up with everything downstream.Expected behavior
The variable should not change name after applying
structural_simplify.Minimal Reproducible Example π
Unfortunately my code is quite complex, so simplifying it to make a MWE would take me a time I don't have right now, I mostly wanted to report the issue. I will provide one later if time allows.
Environment:
using Pkg; Pkg.status()using Pkg; Pkg.status(; mode = PKGMODE_MANIFEST)versioninfo()Additional context
What I am doing in my code is to symbolically discretize a PDE system with MethodOfLines and then tinkering with the ODESystem that comes out of it then simplyfying and finally solving it with MTK. I believe this problem only happens with the discretized variables (written X(t)[n]).