C EXPO 10
C ..................................................................EXPO 20
C EXPO 30
C SAMPLE MAIN PROGRAM FOR TRIPLE EXPONENTIAL SMOOTHING - EXPON EXPO 40
C EXPO 50
C PURPOSE EXPO 60
C (1) READ THE PROBLEM PARAMETER CARD AND A TIME SERIES, EXPO 70
C (2) CALL THE SUBROUTINE EXSMO TO SMOOTH THE TIME SERIES, EXPO 80
C AND (3) PRINT THE RESULT. EXPO 90
C EXPO 100
C REMARKS EXPO 110
C A SMOOTHING CONSTANT SPECIFIED IN THE PROBLEM PARAMETER EXPO 120
C CARD MUST BE GREATER THAN ZERO BUT LESS THAN ONE IN ORDER EXPO 130
C TO OBTAIN REASONABLE RESULTS. EXPO 140
C EXPO 150
C SUBROUTINES AND FUNCTION SUBPROGRAMS REQUIRED EXPO 160
C EXSMO EXPO 170
C EXPO 180
C METHOD EXPO 190
C REFER TO R. G. BROWN, 'SMOOTHING, FORECASTING AND PREDICTIONEXPO 200
C OF DISCRETE TIME SERIES', PRENTICE-HALL, N.J., 1963, EXPO 210
C PP. 140 TO 144. EXPO 220
C EXPO 230
C ..................................................................EXPO 240
C EXPO 250
C THE FOLLOWING DIMENSION MUST BE GREATER THAN OR EQUAL TO THE EXPO 260
C NUMBER OF DATA POINTS IN A GIVEN TIME SERIES.. EXPO 270
C EXPO 280
DIMENSION X(1000),S(1000) EXPO 290
C EXPO 300
C ..................................................................EXPO 310
C EXPO 320
1 FORMAT(A4,A2,I4,F5.0,3F10.0) EXPO 330
2 FORMAT(12F6.0) EXPO 340
3 FORMAT(34H1TRIPLE EXPONENTIAL SMOOTHING.....,A4,A2//22H NUMBER OF EXPO 350
1DATA POINTS,I6/19H SMOOTHING CONSTANT,F9.3/) EXPO 360
4 FORMAT(13H0COEFFICIENTS,9X,1HA,14X,1HB,14X,1HC) EXPO 370
5 FORMAT(9H0ORIGINAL,F19.5,2F15.5) EXPO 380
6 FORMAT(8H0UPDATED,F20.5,2F15.5/) EXPO 390
7 FORMAT(1H0,27X,13HSMOOTHED DATA/7X,10HINPUT DATA,12X,10H(FORECAST)EXPO 400
1) EXPO 410
8 FORMAT(F17.5,8X,F15.5) EXPO 420
C EXPO 430
C ..................................................................EXPO 440
C EXPO 450
C READ PROBLEM PARAMETER CARD EXPO 460
C EXPO 470
100 READ (5,1,END=999) PR,PR1,NX,AL,A,B,C EXPO 480
C PR......PROBLEM NUMBER (MAY BE ALPHAMERIC) EXPO 490
C PR1.....PROBLEM NUMBER (CONTINUED) EXPO 500
C NX......NUMBER OF DATA POINTS IN TIME SERIES EXPO 510
C AL......SMOOTHING CONSTANT EXPO 520
C A,B,C...COEFFICIENTS OF THE PREDICTION EQUATION EXPO 530
C EXPO 540
WRITE (6,3) PR,PR1,NX,AL EXPO 550
C EXPO 560
C PRINT ORIGINAL COEFFICIENTS EXPO 570
C EXPO 580
WRITE (6,4) EXPO 590
WRITE (6,5) A,B,C EXPO 600
C EXPO 610
C READ TIME SERIES DATA EXPO 620
C EXPO 630
READ (5,2) (X(I),I=1,NX) EXPO 640
C EXPO 650
CALL EXSMO (X,NX,AL,A,B,C,S) EXPO 660
C EXPO 670
C PRINT UPDATED COEFFICIENTS EXPO 680
C EXPO 690
WRITE (6,6) A,B,C EXPO 700
C EXPO 710
C PRINT INPUT AND SMOOTHED DATA EXPO 720
C EXPO 730
WRITE (6,7) EXPO 740
DO 200 I=1,NX EXPO 750
200 WRITE (6,8) X(I),S(I) EXPO 760
GO TO 100 EXPO 770
999 STOP
END EXPO 780