ternary operator in initstate!

Author: franckgaga

src/estimator/internal_model.jl

@@ -166,11 +166,7 @@ The deterministic state `estim.x̂d` initialization method is identical to
 """
 function initstate!(estim::InternalModel, u, ym, d=Float64[])
     model = estim.model
-    if isa(model, LinModel)
-        x̂d = steadystate(model, u, d)
-    else
-        x̂d = estim.x̂[1:model.nx]
-    end
+    x̂d = isa(model, LinModel) ? steadystate(model, u, d) : estim.x̂[1:model.nx]
     estim.x̂d[:] = x̂d
     # TODO: best method to initialize internal model stochastic states ? not sure...
     estim.x̂s[:] = zeros(estim.nxs)

src/state_estim.jl

@@ -197,11 +197,7 @@ julia> x̂ = initstate!(estim, [1], [3 - 0.1])
 function initstate!(estim::StateEstimator, u, ym, d=Float64[])
     model = estim.model
     # --- deterministic model states ---
-    x̂d = estim.x̂[1:model.nx]
-    if isa(model, LinModel)
-        # init deterministic state with steady-states at current input and disturbance :
-        x̂d = steadystate(model, u, d)
-    end
+    x̂d = isa(model, LinModel) ? steadystate(model, u, d) : estim.x̂[1:model.nx]
     # --- stochastic model states (integrators) ---
     ŷd = model.h(x̂d, d - model.dop) + model.yop
     ŷsm = ym - ŷd[estim.i_ym]