ng2-datepicker how to set or update date manually

Question

ng2-datepicker how to set date manually?

<ng2-datepicker [(ngModel)]="date" [options]="options"
(outputEvents)="handleDateChange($event,date)"></ng2-datepicker>

datepicker.component.ts

options: DatePickerOptions = {
        initialDate: new Date(),
        autoApply: true
    };

from typescript code how to set date picker date to next date or previous date etc.

I tried ng2-datepicker issue but it's not working.