Function Formula

docs/app/js/sanddance-app.js:117457–117459

* Invokes a function for each data tuple and saves the results as a new field. * @constructor * @param {object} params - The parameters for this operator. * @param {function(object): *} params.expr - The formula function to invoke for each tuple. * @param {string} params.as - The field name unde

(params)

 * @param {boolean} [params.initonly=false] - If true, the formula is applied to
 *   added tuples only, and does not update in response to modifications.
 */ function Formula(params) {
    (0, _vegaDataflow.Transform).call(this, null, params);
}
Formula.Definition = {
    "type": "Formula",
    "metadata": {