Regression Workflow

Goal

Submit structured values and render one numeric score.

import { predictionTransport } from "./prediction-transport";

mountForm(container, {
  transport: predictionTransport,
  schema: {
    fields: [
      { id: "area", kind: "number", label: "Area", mappedTo: "area", min: 0, unit: "m2" },
      { id: "rooms", kind: "number", label: "Rooms", mappedTo: "rooms", min: 1, step: 1 },
    ],
    reports: [
      { id: "price", kind: "regressor", label: "Estimated price", mappedTo: "price", unit: "EUR", precision: 0 },
    ],
  },
});

Response:

{
  "reports": [
    {
      "backend": "default",
      "mappedTo": "price",
      "status": "ready",
      "payload": { "value": 275000 }
    }
  ]
}

Expected UI behavior: numeric inputs normalize empty values to null, validation runs before submit, and the regressor report renders with the configured unit and precision.

Mistakes to avoid:

Mistake	Fix
Treating empty number inputs as zero	Handle null in the backend.
Returning a string for numeric output	Return a numeric payload when possible.

Next: Conditional Form.