Function evaluate_compiled 

pub fn evaluate_compiled(
    cg: &CompiledGraph,
    flat: &HashMap<String, f64>,
    x: &[f64],
) -> Result<Vec<f64>, CoreError>

Evaluate the model sum at each x-point.

For each point, sums model.eval(coord, &params) across all nodes, where coord is the n_dims-length coordinate slice for that point. For 1-D models coord is a single-element slice (x[i..i+1]); for n-D models it is the full strided coordinate x[i*d..(i+1)*d].

Errors

Returns CoreError::Eval if: flat is missing a required "node_id.param_name" entry for some node (GraphError::MissingParamKey); x.len() is not an exact multiple of the graph’s coordinate dimensionality (GraphError::XBufferStrideMismatch); the graph’s nodes disagree on n_dims (GraphError::DimensionalityMismatch); or, when multi-dataset scoping is active, a node’s dataset_index is out of range (GraphError::DatasetIndexOutOfRange).