Changing plot scaling within HPPPL program

[amindanial]

I wrote the following code such that a sinusoidal function is drawn point by point using the plot view of Statistics 1Var. The scaling is adjusted according to the maximum values of the x-axis and y-axis. The scaling is updated with each new value of the function.
Unfortunately, the scaling is just adjusted at the first round and not updated after that. Please advise what could be the problem.



Code:

EXPORT Data_Grapher()
BEGIN
LOCAL b,j;
D1:={};
D2:={};
H1(1):="D1";
H1(2):="D2";
H1(3):=4;
STARTAPP("Statistics 1Var");
FOR j FROM 0 TO 360
DO
D1:=append(D1,j);
b:=SIN(j*π/180);
D2:=append(D2,b);
0▶Xmin;
(MAX(D1)*1.1)▶Xmax;
(MIN(D2)-ABS(MIN(D2))*0.1)▶Ymin;
(MAX(D2)+ABS(MAX(D2))*0.1)▶Ymax;
STARTVIEW(1,1);
END;
END;