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Hello,
I would like to create a simulation model from equations generated using matrices of coefficients obtained from Matlab through xget, but am unsure of the syntax to use.

I naively tried the following

' create model from dr.ghx and dr.ghu
model mod1
%eq = " "
%eq = %eq + "+" + dr_ghx(1,1) + "*" + "r(-1)" + "+" + dr_ghx(1,2) + "*" + "pi(-1)" "+" + dr_ghx(1,3) + "*" + "y(-1)" "+" + dr_ghu(1,1) + "*" + "eas" "+" + dr_ghu(1,2) + "*" + "eis" "+" + dr_ghu(1,3) + "*" + "emp"
%eq = "r =" + %eq
mod1.append %eq

but it failed, with the error message

%EQ is not defined or is an illegal command in "%EQ = " " + "+" + DR_GHX(1,1) + "*" + "R(-1)" + "+" + DR_GHX(1,2) + "*" + "PI(-1 ...

Could someone help with the correct syntax, please?

Thanks and regards
Donihue

Your idea is right, your execution is not :D

You're missing a bunch of pluses in your definition. For example, you currently have: when you probably want: or: Also, you don't mention what DR_GHX and DR_GHU are. If they're matrices, then you probably want to put @str around them to convert the elements into strings.

Thanks very much, Gareth, for catching those silly errors. Also, I had not realised that I needed to use the "@str" syntax. I have corrected and it runs pefectly now.
Regards
Donihue