      SUBROUTINE MOVE(X,M,IX1,IY1,Y)
C
C     PURPOSE--THIS SUBROUTINE MOVES (COPIES) M ELEMENTS OF THE
C              SINGLE PRECISION VECTOR X
C              (STARTING WITH POSITION IX1)
C              INTO THE SINGLE PRECISION VECTOR Y 
C              (STARTING WITH POSITION IY1).
C              THIS ALLOWS THE DATA ANALYST
C              TO TAKE ANY SUBVECTOR IN X AND PLACE IT
C              ANYWHERE IN THE VECTOR Y.
C     INPUT  ARGUMENTS--X      = THE SINGLE PRECISION VECTOR OF
C                                OBSERVATIONS, PART (OR ALL)
C                                OF WHICH IS TO BE MOVED
C                                (COPIED) OVER INTO THE VECTOR Y.
C                     --M      = THE INTEGER NUMBER OF ELEMENTS
C                                IN THE VECTOR X TO BE MOVED.
C                     --IX1    = THE INTEGER VALUE WHICH DEFINES
C                                THE POSITION IN THE VECTOR X
C                                OF THE FIRST ELEMENT TO BE MOVED.
C                     --IY1    = THE INTEGER VALUE WHICH DEFINES
C                                THE POSITION IN THE VECTOR Y
C                                WHERE THE FIRST ELEMENT TO BE MOVED
C                                WILL BE PLACED.
C     OUTPUT ARGUMENTS--Y      = THE SINGLE PRECISION VECTOR
C                                INTO WHICH THE COPIED DATA VALUES
C                                FROM THE VECTOR X WILL BE SEQUENTIALLY
C                                PLACED, STARTING IN POSITION IY1 OF Y.
C     OUTPUT--THE SINGLE PRECISION VECTOR Y.
C             IN WHICH THE M ELEMENTS IN POSITIONS
C             IY1, IY1+1, ... , IY1+M-1 
C             WILL BE IDENTICAL TO THE M ELEMENTS 
C             IN THE X VECTOR IN POSITIONS
C             IX1, IX1+1, ... , IX1+M-1.
C     PRINTING--NONE UNLESS AN INPUT ARGUMENT ERROR CONDITION EXISTS. 
C     RESTRICTIONS--THERE IS NO RESTRICTION ON THE MAXIMUM VALUE
C                   OF M FOR THIS SUBROUTINE.
C     OTHER DATAPAC   SUBROUTINES NEEDED--NONE.
C     FORTRAN LIBRARY SUBROUTINES NEEDED--NONE.
C     MODE OF INTERNAL OPERATIONS--SINGLE PRECISION.
C     LANGUAGE--ANSI FORTRAN. 
C     COMMENT--THE ELEMENT IN POSITION IX1 OF THE VECTOR X
C            IS COPIED INTO POSITION IY1 OF THE VECTOR Y,
C            THE ELEMENT IN POSITION (IX1+1) OF THE VECTOR X
C            IS COPIED INTO POSITION (IY1+1) OF THE VECTOR Y,
C            ... ,
C            THE ELEMENT IN POSITION (IX1+M-1) OF THE VECTOR X
C            IS COPIED INTO POSITION (IY1+M-1) OF THE VECTOR Y.
C     COMMENT--THE INPUT VECTOR X REMAINS UNALTERED.
C     REFERENCES--NONE.
C     WRITTEN BY--JAMES J. FILLIBEN
C                 STATISTICAL ENGINEERING LABORATORY (205.03)
C                 NATIONAL BUREAU OF STANDARDS
C                 WASHINGTON, D. C. 20234
C                 PHONE--301-921-2315
C     ORIGINAL VERSION--NOVEMBER  1972. 
C     UPDATED         --NOVEMBER  1975. 
C
C---------------------------------------------------------------------
C
      DIMENSION X(1),Y(1)
C
      IPR=6
C
C     CHECK THE INPUT ARGUMENTS FOR ERRORS
C
      IF(M.LT.1)GOTO50
      IF(IX1.LT.1)GOTO65
      IF(IY1.LT.1)GOTO70
      IF(M.EQ.1)GOTO55
      HOLD=X(IX1)
      ISTART=IX1+1
      IEND=IX1+M-1
      DO60I=ISTART,IEND
      IF(X(I).NE.HOLD)GOTO90
   60 CONTINUE
      WRITE(IPR, 9)HOLD
      GOTO90
   50 WRITE(IPR,15) 
      WRITE(IPR,47)M
      RETURN
   55 WRITE(IPR,18) 
      GOTO90
   65 WRITE(IPR,25) 
      WRITE(IPR,47)IX1
      RETURN
   70 WRITE(IPR,35) 
      WRITE(IPR,47)IY1
      RETURN
   90 CONTINUE
    9 FORMAT(1H ,108H***** NON-FATAL DIAGNOSTIC--THE FIRST  INPUT ARGUME
     1NT (A VECTOR) TO THE MOVE   SUBROUTINE HAS ALL ELEMENTS = ,E15.8,6
     1H *****)
   15 FORMAT(1H , 91H***** FATAL ERROR--THE SECOND INPUT ARGUMENT TO THE
     1 MOVE   SUBROUTINE IS NON-POSITIVE *****)
   18 FORMAT(1H ,100H***** NON-FATAL DIAGNOSTIC--THE SECOND INPUT ARGUME
     1NT TO THE MOVE   SUBROUTINE HAS THE VALUE 1 *****)
   25 FORMAT(1H , 91H***** FATAL ERROR--THE THIRD  INPUT ARGUMENT TO THE
     1 MOVE   SUBROUTINE IS NON-POSITIVE *****)
   35 FORMAT(1H , 91H***** FATAL ERROR--THE FOURTH INPUT ARGUMENT TO THE
     1 MOVE   SUBROUTINE IS NON-POSITIVE *****)
   47 FORMAT(1H , 35H***** THE VALUE OF THE ARGUMENT IS ,I8   ,6H *****)
C
C-----START POINT-----------------------------------------------------
C
      DO100I=1,M
      J=IX1-1+I
      K=IY1-1+I
      Y(K)=X(J)
  100 CONTINUE
C
      RETURN
      END 
