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Source Code

  10 PRINT "%K%W%I%K%P%L%O%T"
  20 DIM A$(17,25)
  30 LET MX=0
  40 LET MY=0
  50 LET CROSS=0
  60 LET MSQX=0
  70 LET MSQY=0
  80 DIM X(100)
  90 DIM Y(100)
 100 PRINT AT 10,0;"INPUT YOUR SAMPLE SIZE."
 110 INPUT N
 120 CLS 
 130 PRINT AT 10,0;"INPUT YOUR DATA WITH EACH X(VRT)FOLLOWED BY ITS Y(HRZ)."
 140 FOR I=1 TO N
 150 INPUT X(I)
 160 INPUT Y(I)
 170 CLS 
 180 NEXT I
 190 FOR I=1 TO N
 200 LET MX=MX+X(I)
 210 LET MY=MY+Y(I)
 220 LET CROSS=CROSS+X(I)*Y(I)
 230 LET MSQX=MSQX+(ABS X(I))**2
 240 LET MSQY=MSQY+(ABS Y(I))**2
 250 NEXT I
 260 LET MX=MX/N
 270 LET MY=MY/N
 280 LET SX=SQR ((MSQX/N)-(MX)**2)
 290 LET SY=SQR ((MSQY/N)-(MY)**2)
 300 IF SX=0 OR SY=0 THEN GOTO 330
 310 LET R=((CROSS/N)-(MX*MY))/(SX*SY)
 320 PRINT "MX=";MX;" MY=";MY;" R=";R
 330 IF SX=0 OR SY=0 THEN PRINT "R IS NOT COMPUTABLE"
 340 PRINT 
 350 LET XH=X(1)
 360 LET YH=Y(1)
 370 FOR I=1 TO N
 380 IF X(I)>XH THEN LET XH=X(I)
 390 IF Y(I)>YH THEN LET YH=Y(I)
 400 NEXT I
 410 LET XRANGE=XH
 420 LET YRANGE=YH
 430 LET IX=XRANGE/16
 440 LET P=YRANGE/4
 450 LET Z=XH
 460 FOR I=1 TO N
 470 LET X(I)=INT (((X(I)/XRANGE)*16)+1.5)
 480 LET Y(I)=INT (((Y(I)/YRANGE)*24)+1.5)
 490 NEXT I
 500 FOR I=1 TO 17
 510 FOR J=1 TO 24
 520 LET A$(I,J)=" "
 530 NEXT J
 540 NEXT I
 550 FOR I=1 TO N
 560 IF A$(X(I),Y(I))="8" THEN LET A$(X(I),Y(I))="9"
 570 IF A$(X(I),Y(I))="7" THEN LET A$(X(I),Y(I))="8"
 580 IF A$(X(I),Y(I))="6" THEN LET A$(X(I),Y(I))="7"
 590 IF A$(X(I),Y(I))="5" THEN LET A$(X(I),Y(I))="6"
 600 IF A$(X(I),Y(I))="4" THEN LET A$(X(I),Y(I))="5"
 610 IF A$(X(I),Y(I))="3" THEN LET A$(X(I),Y(I))="4"
 620 IF A$(X(I),Y(I))="2" THEN LET A$(X(I),Y(I))="3"
 630 IF A$(X(I),Y(I))="*" THEN LET A$(X(I),Y(I))="2"
 640 IF A$(X(I),Y(I))=" " THEN LET A$(X(I),Y(I))="*"
 650 NEXT I
 660 FOR L=17 TO 1 STEP -1
 670 IF I=1 THEN PRINT "0";TAB 4;" \: ";A$(I)
 680 IF I>1 THEN PRINT INT (Z+.5);TAB 4;" \: ";A$(I)
 690 LET Z=Z-IX
 700 NEXT I
 710 PRINT TAB 4;"\''\':\''\''\''\''\':\''\''\''\''\''\''\':\''\''\''\''\''\':\''\''\''\''\''\':"
 720 PRINT TAB 5,0;TAB 10,INT ((YRANGE-3*P)+.5);TAB 16;INT ((YRANGE-2*P)+.5);TAB 22;INT ((YRANGE-P)+.5);TAB 28;INT (YRANGE)
 900 STOP 
 950 CLEAR 
 960 SAVE "1006%9"
 970 RUN