Hey,
It is my understanding that you want to extract a subset (a single row in your case) from the output of the state space block. You further want to pass this extracted vector into the 'function interpreted' block.
Variable Selector block can be used to extract a subset from the output of the state space block (say X). Since the shape of output 'X' is known, you can set the following parameters in the Variable selector block:
- Number of input signals = 1
- Selector Mode = 'Fixed'
- Elements = [1] (2 if you want to extract the second row from the output X)
This extracted signal can then be concatenated to your inital inputs of the 'function interpreted' block using the Vector/Matrix concatenate block. You can further slice this input as per your requirement in the MATLAB function created for the 'function interpreted' block.
