In Fraijo v. Superior Court (1973) 34 Cal.App.3d 222, the court concluded: "A plea bargain is concerned only with the sentence to be imposed in exchange for defendant's plea of guilty which plea admits all of the facts necessary to establish guilt. Sentencing is addressed to the discretion of the trial judge and involves an evaluation of the circumstances surrounding the offense. Such an evaluation is not a determination of a factual issue on the merits as envisioned by section 170.6. A judge's evaluation of admitted facts, to determine whether to refuse or accept a proposed plea bargain, does not involve a fact finding function in respect of an issue to be tried."