I have the following program which works on the file ref below but does not seem to work on nref attached which is not output as a continuous file but seems to be wrapping around. Can anyone tell me why and how to correct the problem? data _null_ ; infile '/folders/myfolders/bootnew/nREF.CTL' truncover; /* INPUT CHARACTER FILE*/ input c $1000.; do i=1 to 2; myfile='/folders/myfolders/bootnew/nREF' || trim(left(put(i,8.))) || '.ctl'; file dummy filevar=myfile MOD ; if _n_=2 then do; if i=1 then do; amp_loc=index(c,'&'); first_half=substr(c,1,amp_loc-1); last_half=substr(c,amp_loc+2); end; c= trim(first_half) || trim(left(put(i,8.))) || last_half; end; put c $; end; run; FILE REF: $PROBLEM TWO PEAK SEQUENTIAL ZERO AND FIRST ORDER $DATA ..\TFIT&i.CSV IGNORE=W $INPUT ID TIME DV DOSE CMT AMT EVID MDV $SUB ADVAN5 TRANS1 $MODEL COMP=(1);DOSE1 COMP=(2);DOSE2 COMP=(CENTRAL,DEFOBS);CENTRAL,DEFDOSE) $PK KAS= THETA(1) KAF= THETA(2) CL = THETA(3) V3 = THETA(4) TLAG2= THETA(5) LOGITT = THETA(6) TVF1 = 1/(1+EXP(-LOGITT)) F1 = TVF1 S3= V3/1000 F2=1-F1 K23=KAF ;FIRST ORDER MR TO CENTRAL K13=KAS ;FLOW FROM MR TO CENTRAL K30=CL/V3 ;ELIMINATION FROM CENTRAL $ERROR CP=A(3)/S3 Y=CP +CP*ERR(1) + ERR(2) $THETA (0.05,0.5) ;1)K0 $THETA (0.05,0.8) ;2)KAS $THETA (60, 200) ;3)CL L/HR $THETA (30,100) ;4)V3 L $THETA (0.1,2) ;5)LAG2 HR $THETA (-10.0 -0.04 1 ) ;6)LOGIT F1 $OMEGA 0.01 0.1 $EST METH=0 MAXEVAL=9999 PRINT=5 ;$COVARIANCE ;$SIM (123456) ONLYSIM SUBPROBLEMS=1 $TABLE ID AMT TIME DV CMT Y DOSE KAF KAS CL V3 TLAG2 LOGITT ONEHEADER NOPRINT FILE=MOD.FIT
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