Scale objects via script?

Unity newb, but intermediate developer. It appears transform.scale doesn’t actually exist. In my game, I need the visual appearance of something to scale up and down arbitrarily. How can I accomplish this?

You want that maybe?

Hello…!

using UnityEngine;
using System.Collections;

public class test : MonoBehaviour
{
	void Update()
    {
		Vector3 mi = transform.localScale;
		mi.y += Input.GetAxis ("Horizontal");
		mi.x += Input.GetAxis ("Vertical");
		transform.localScale = mi;

    }
}