[Limdep Nlogit List] MLOGIT RPM Error 697

[Steven Ramsey]

Wondering if anyone can help me out. I'm running the code below:


MLOGIT ;LHS = LU_T
  ;RHS = ONE,CLAY,SILT,TFACTOR,WEI,PSOY,PCORN,PWHEAT,PDIESEL,PLABOR,
    AVGM31,AVGM32,AVGM33,AVGM34,AVGS31,AVGS32,AVGS33,AVGS34,
    PRECSUM,PRECFALL,
    OTH0,SORG0,WHEAT0,FALLOW0,
    OTH00,SORG00,WHEAT00,FALLOW00,
    OTHTM1,SORGTM1,WHEATTM1,FALLTM1,
    OTHTM2,SORGTM2,WHEATTM2,FALLTM2,
    MPSOY,MPCORN,MPWHEAT,
    MAVGM31,MAVGM32,MAVGM33,MAVGM34,MAVGSD31,
    MAVGSD32,MAVGSD33,MAVGSD34,
    MPRECSUM,MPREFALL
  ;ALG = DFP
  ;MAXIT = 10000
  ;TLF = 1E-20
  ;TLG = 0.5E-4
  ;OUTPUT = 1
  $

MLOGIT ;LHS = LU_T
  ;RHS = ONE,CLAY,SILT,TFACTOR,WEI,PSOY,PCORN,PWHEAT,PDIESEL,PLABOR,
    AVGM31,AVGM32,AVGM33,AVGM34,AVGS31,AVGS32,AVGS33,AVGS34,
    PRECSUM,PRECFALL,
    OTH0,SORG0,WHEAT0,FALLOW0,
    OTH00,SORG00,WHEAT00,FALLOW00,
    OTHTM1,SORGTM1,WHEATTM1,FALLTM1,
    OTHTM2,SORGTM2,WHEATTM2,FALLTM2,
    MPSOY,MPCORN,MPWHEAT,
    MAVGM31,MAVGM32,MAVGM33,MAVGM34,MAVGSD31,
    MAVGSD32,MAVGSD33,MAVGSD34,
    MPRECSUM,MPREFALL
  ;RPM
  ;FCN=ONE(N)
  ;HALTON
  ;PTS = 20
  ;PDS = 8
  ;ALG = DFP
  ;MAXIT = 10000
  ;TLF = 1E-20
  ;TLG = 0.5E-4
  ;OUTPUT = 1
  $


The first model estimates, but I continually get  "Error 697: Expected to find B matrix from previous LOGIT model." Based on the documentation, it doesn't appear I need to manually keep the matrix with MATRIX; something = B, and then use this as a starting point. But, I have tried that, and it also didn't work. Any thoughts would be appreciated.


Thanks,


Steve Ramsey