Trying to add model name to classify() output

[Peter Davie]

Hi,

I have trained a number of logistic regression classification models 
(using train()) and I am now trying to evaluate these models.  I want to 
add the model name to the classify() (output) stream.  I am trying to 
use the following select() with setValue() as follows:

select(
    classify(
        model(
            models,
            id="crime_model",
            cacheMillis=5000
        ),
        search(
            news_categories,
            sort="id asc",
            q="role:test",
            qt="/export",
            fl="id,body",
            rows=50000
        ),
        field="body"
    ),
    id,
    score_d,
    probability_d,
    setValue("expected","CRIME") as expected
)

However, I am not seeing the "expected" field in the output stream:

{
  "result-set": {
    "docs": [
      {
        "probability_d": 0.9807157418649378,
        "score_d": 1.7570993028820825,
        "id": "0001b92f-da6e-41a6-8518-a0d083c0f870"
      },
      {
        "probability_d": 0.7310585786300049,
        "score_d": 0.24253562092781067,
        "id": "0003b45b-aab9-4635-8f93-903c6f492355"
      },
      {
        "probability_d": 0.7310585786300049,
        "score_d": 0.2773500978946686,
        "id": "0008ecb1-3add-4ef5-85e1-736bf37a834b"
      },
      etc.
    ]}
}

Can anyone point out what am I doing wrong?

Peter