SUBROUTINE V7DFL(ALG, LV, V)
C
C  ***  SUPPLY ***SOL (VERSION 2.3) DEFAULT VALUES TO V  ***
C
C  ***  ALG = 1 MEANS REGRESSION CONSTANTS.
C  ***  ALG = 2 MEANS GENERAL UNCONSTRAINED OPTIMIZATION CONSTANTS.
C
      INTEGER ALG, LV
      REAL V(LV)
C
      REAL  R7MDC
      EXTERNAL  R7MDC
C  R7MDC... RETURNS MACHINE-DEPENDENT CONSTANTS
C
      REAL MACHEP, MEPCRT, ONE, SQTEPS, THREE
C
C  ***  SUBSCRIPTS FOR V  ***
C
      INTEGER AFCTOL, BIAS, COSMIN, DECFAC, DELTA0, DFAC, DINIT, DLTFDC,
     1        DLTFDJ, DTINIT, D0INIT, EPSLON, ETA0, FUZZ, HUBERC,
     2        INCFAC, LMAX0, LMAXS, PHMNFC, PHMXFC, RDFCMN, RDFCMX,
     3        RFCTOL, RLIMIT, RSPTOL, SCTOL, SIGMIN, TUNER1, TUNER2,
     4        TUNER3, TUNER4, TUNER5, XCTOL, XFTOL
C
C/6
C     DATA ONE/1.E+0/, THREE/3.E+0/
C/7
      PARAMETER (ONE=1.E+0, THREE=3.E+0)
C/
C
C  ***  V SUBSCRIPT VALUES  ***
C
C/6
C     DATA AFCTOL/31/, BIAS/43/, COSMIN/47/, DECFAC/22/, DELTA0/44/,
C    1     DFAC/41/, DINIT/38/, DLTFDC/42/, DLTFDJ/43/, DTINIT/39/,
C    2     D0INIT/40/, EPSLON/19/, ETA0/42/, FUZZ/45/, HUBERC/48/,
C    3     INCFAC/23/, LMAX0/35/, LMAXS/36/, PHMNFC/20/, PHMXFC/21/,
C    4     RDFCMN/24/, RDFCMX/25/, RFCTOL/32/, RLIMIT/46/, RSPTOL/49/,
C    5     SCTOL/37/, SIGMIN/50/, TUNER1/26/, TUNER2/27/, TUNER3/28/,
C    6     TUNER4/29/, TUNER5/30/, XCTOL/33/, XFTOL/34/
C/7
      PARAMETER (AFCTOL=31, BIAS=43, COSMIN=47, DECFAC=22, DELTA0=44,
     1           DFAC=41, DINIT=38, DLTFDC=42, DLTFDJ=43, DTINIT=39,
     2           D0INIT=40, EPSLON=19, ETA0=42, FUZZ=45, HUBERC=48,
     3           INCFAC=23, LMAX0=35, LMAXS=36, PHMNFC=20, PHMXFC=21,
     4           RDFCMN=24, RDFCMX=25, RFCTOL=32, RLIMIT=46, RSPTOL=49,
     5           SCTOL=37, SIGMIN=50, TUNER1=26, TUNER2=27, TUNER3=28,
     6           TUNER4=29, TUNER5=30, XCTOL=33, XFTOL=34)
C/
C
C-------------------------------  BODY  --------------------------------
C
      MACHEP =  R7MDC(3)
      V(AFCTOL) = 1.E-20
      IF (MACHEP .GT. 1.E-10) V(AFCTOL) = MACHEP**2
      V(DECFAC) = 0.5E+0
      SQTEPS =  R7MDC(4)
      V(DFAC) = 0.6E+0
      V(DTINIT) = 1.E-6
      MEPCRT = MACHEP ** (ONE/THREE)
      V(D0INIT) = 1.E+0
      V(EPSLON) = 0.1E+0
      V(INCFAC) = 2.E+0
      V(LMAX0) = 1.E+0
      V(LMAXS) = 1.E+0
      V(PHMNFC) = -0.1E+0
      V(PHMXFC) = 0.1E+0
      V(RDFCMN) = 0.1E+0
      V(RDFCMX) = 4.E+0
      V(RFCTOL) = AMAX1(1.E-10, MEPCRT**2)
      V(SCTOL) = V(RFCTOL)
      V(TUNER1) = 0.1E+0
      V(TUNER2) = 1.E-4
      V(TUNER3) = 0.75E+0
      V(TUNER4) = 0.5E+0
      V(TUNER5) = 0.75E+0
      V(XCTOL) = SQTEPS
      V(XFTOL) = 1.E+2 * MACHEP
C
      IF (ALG .GE. 2) GO TO 10
C
C  ***  REGRESSION  VALUES
C
      V(COSMIN) = AMAX1(1.E-6, 1.E+2 * MACHEP)
      V(DINIT) = 0.E+0
      V(DELTA0) = SQTEPS
      V(DLTFDC) = MEPCRT
      V(DLTFDJ) = SQTEPS
      V(FUZZ) = 1.5E+0
      V(HUBERC) = 0.7E+0
      V(RLIMIT) =  R7MDC(5)
      V(RSPTOL) = 1.E-3
      V(SIGMIN) = 1.E-4
      GO TO 999
C
C  ***  GENERAL OPTIMIZATION VALUES
C
 10   V(BIAS) = 0.8E+0
      V(DINIT) = -1.0E+0
      V(ETA0) = 1.0E+3 * MACHEP
C
 999  RETURN
C  ***  LAST CARD OF V7DFL FOLLOWS  ***
      END