min( v ) {

		this.x = Math.min( this.x, v.x );
		this.y = Math.min( this.y, v.y );
		this.z = Math.min( this.z, v.z );
		this.w = Math.min( this.w, v.w );

		return this;

	}
If this vector's x, y, z or w value is greater than the given vector's x, y, z or w
value, replace that value with the corresponding min value.

@param {Vector4} v - The vector.
@return {Vector4} A reference to this vector.