/************************************************************************************************/ /* Stata User File for HC10DF1 Data */ /* */ /* This file contains information and a sample Stata program to create a permanent */ /* Stata dataset for users who want to use Stata in processing the MEPS data provided */ /* in this PUF release. Stata (StataCorp) has the capability to produce */ /* appropriate standard errors for estimates from a survey with a complex sample */ /* design such as the Medical Expenditure Panel Survey (MEPS). */ /* The input file for creating a permanent Stata dataset is the ASCII data file */ /* (HC10DF1.DAT) supplied in this PUF release, which in turn can be extracted from the */ /* .EXE file. After entering the Stata interactive environment access the Stata DO-File */ /* editor by clicking on the appropriate icon in the command line at the top of the */ /* screen. Copy and paste the following Stata commands into the editor and save as a */ /* DO file. A DO file is a Stata program which may then be executed using the DO command. */ /* For example, if the DO file is named HC10DF1.DO and is located in the directory */ /* C:\MEPS\PROG, then the file may be executed by typing the following command into */ /* the Stata command line: */ /* do C:\MEPS\PROG\HC10DF1.DO */ /* The program below will output the Stata dataset HC10DF1.DTA */ /************************************************************************************************/ #delimit ; cd C:\MEPS\DATA; log using HC10DF1.log, replace; clear; * INPUT ALL VARIABLES; infix long DUID 1-5 int PID 6-8 str DUPERSID 9-16 str EVNTIDX 17-28 byte EVENTRN 29-29 str ERHEVIDX 30-41 str FFID11X 42-52 byte MPCDATA 53-53 byte MBLINK 54-54 int IPBEGYR 55-58 byte IPBEGMM 59-60 byte IPBEGDD 61-62 int IPENDYR 63-66 byte IPENDDD 67-68 byte IPENDMM 69-70 int NUMNIGHX 71-73 byte NUMNIGHT 74-75 byte EMERROOM 76-77 byte SPECCOND 78-79 byte RSNINHOS 80-81 byte ANYOPER 82-83 byte SURGPROC 84-85 byte VAPLACE 86-87 str IPICD1X 88-90 str IPICD2X 91-93 str IPICD3X 94-96 str IPICD4X 97-99 str IPPRO1X 100-101 str IPPRO2X 102-103 str IPCCC1X 104-106 str IPCCC2X 107-109 str IPCCC3X 110-112 str IPCCC4X 113-115 byte NUMCOND 116-116 byte DSCHPMED 117-118 byte DROUTSID 119-120 byte FFIPTYPX 121-122 byte FFIP96 123-124 byte FFTOT96 125-126 double IPEXP96X 127-135 double IPTCH96X 136-144 double IPFSF96X 145-152 double IPFMR96X 153-160 double IPFMD96X 161-169 double IPFPV96X 170-178 double IPFVA96X 179-187 double IPFCH96X 188-194 double IPFOF96X 195-201 double IPFSL96X 202-208 double IPFWC96X 209-215 double IPFOR96X 216-223 double IPFOU96X 224-231 double IPFOT96X 232-239 double IPFXP96X 240-248 double IPFTC96X 249-257 double IPDSF96X 258-264 double IPDMR96X 265-272 double IPDMD96X 273-280 double IPDPV96X 281-288 double IPDVA96X 289-294 double IPDCH96X 295-301 double IPDOF96X 302-307 double IPDSL96X 308-314 double IPDWC96X 315-321 double IPDOR96X 322-328 double IPDOU96X 329-335 double IPDOT96X 336-342 double IPDXP96X 343-350 double IPDTC96X 351-358 byte IMPIPFSF 359-359 byte IMPIPFMR 360-360 byte IMPIPFMD 361-361 byte IMPIPFPV 362-362 byte IMPIPFVA 363-363 byte IMPIPFCH 364-364 byte IMPIPFOF 365-365 byte IMPIPFSL 366-366 byte IMPIPFWC 367-367 byte IMPIPFOR 368-368 byte IMPIPFOU 369-369 byte IMPIPFOT 370-370 byte IMPIPCHG 371-371 byte IMPIPNUM 372-372 double WTDPER96 373-384 byte VARPSU96 385-386 int VARSTR96 387-389 using HC10DF1.dat; *DEFINE VARIABLE LABELS; label variable DUID "DWELLING UNIT ID"; label variable PID "PERSON NUMBER"; label variable DUPERSID "PERSON ID (DUID + PID)"; label variable EVNTIDX "EVENT ID"; label variable EVENTRN "EVENT ROUND NUMBER"; label variable ERHEVIDX "ER/HS LINK ID"; label variable FFID11X "FLAT FEE ID"; label variable MPCDATA "MPC DATA FLAG"; label variable MBLINK "MOM/BABY EXPENDITURES FLAG"; label variable IPBEGYR "EVENT START DATE - YEAR"; label variable IPBEGMM "EVENT START DATE - MONTH"; label variable IPBEGDD "EVENT START DATE - DAY"; label variable IPENDYR "EVENT END DATE - YEAR"; label variable IPENDDD "EVENT END DATE - DAY"; label variable IPENDMM "EVENT END DATE - MONTH"; label variable NUMNIGHX "# NIGHTS IN HOSPITAL (EDITED)"; label variable NUMNIGHT "NUMBER OF NIGHTS STAYED AT HOSPITAL"; label variable EMERROOM "DID STAY BEGIN WITH EMERGENCY ROOM VISIT"; label variable SPECCOND "HOSPITAL STAY RELATED TO CONDITION"; label variable RSNINHOS "REASON ENTERED HOSPITAL"; label variable ANYOPER "ANY OPERATIONS OR SURGERIES PERFORMED"; label variable SURGPROC "MAIN SURGICAL PROCEDURE"; label variable VAPLACE "VA FACILITY FLAG"; label variable IPICD1X "3 DIGIT ICD-9 CONDITION CODE"; label variable IPICD2X "3 DIGIT ICD-9 CONDITION CODE"; label variable IPICD3X "3 DIGIT ICD-9 CONDITION CODE"; label variable IPICD4X "3 DIGIT ICD-9 CONDITION CODE"; label variable IPPRO1X "2 DIGIT ICD-9 PROCEDURE CODE"; label variable IPPRO2X "2 DIGIT ICD-9 PROCEDURE CODE"; label variable IPCCC1X "MODIFIED CLINICAL CLASSIFICATION CODE"; label variable IPCCC2X "MODIFIED CLINICAL CLASSIFICATION CODE"; label variable IPCCC3X "MODIFIED CLINICAL CLASSIFICATION CODE"; label variable IPCCC4X "MODIFIED CLINICAL CLASSIFICATION CODE"; label variable NUMCOND "TOTAL # COND RECORDS LINKED TO THIS EVNT"; label variable DSCHPMED "MEDICINES PRESCRIBED AT DISCHARGE"; label variable DROUTSID "ANY OF THE DRS SEEN OUTSIDE THE PROVIDER"; label variable FFIPTYPX "ED FLAT FEE STEM-LEAF INDICATOR"; label variable FFIP96 "# OF IP VISITS IN FLAT FFEE - 1996"; label variable FFTOT96 "# VISITS IN FLAT FEE (ALL EVENTS) - 1996"; label variable IPEXP96X "TOT EXP FOR EVENT(IPFXP96X + IPDXP96X)"; label variable IPTCH96X "TOT CHG FOR EVENT(IPFTC96X + IPDTC96X)"; label variable IPFSF96X "FACILITY AMT PD, FAMILY (IMPUTED)"; label variable IPFMR96X "FACILITY AMT PD,MEDICARE (IMPUTED)"; label variable IPFMD96X "FACILITY AMT PD,MEDICAID (IMPUTED)"; label variable IPFPV96X "FACILITY AMT PD,PRIV INSUR (IMPUTED)"; label variable IPFVA96X "FACILITY AMT PD,VETERANS (IMPUTED)"; label variable IPFCH96X "FACILITY AMT PD,CHAMP/CHAMPVA (IMPUTED)"; label variable IPFOF96X "FACILITY AMT PD,OTH FEDERAL (IMPUTED)"; label variable IPFSL96X "FACILITY AMT PD,STATE/LOC GOV (IMPUTED)"; label variable IPFWC96X "FACILITY AMT PD,WORKERS COMP (IMPUTED)"; label variable IPFOR96X "FACILITY AMT PD,OTH PRIV (IMPUTED)"; label variable IPFOU96X "FACILITY AMT PD,OTH PUB (IMPUTED)"; label variable IPFOT96X "FACILITY AMT PD,OTH INSUR (IMPUTED)"; label variable IPFXP96X "FACILITY SUM PAYMENTS IPFSF96X-IPFOT96X"; label variable IPFTC96X "TOTAL FACILITY CHARGE (IMPUTED)"; label variable IPDSF96X "DOCTOR AMOUNT PAID, FAMILY (IMPUTED)"; label variable IPDMR96X "DOCTOR AMOUNT PAID, MEDICARE (IMPUTED)"; label variable IPDMD96X "DOCTOR AMOUNT PAID, MEDICAID (IMPUTED)"; label variable IPDPV96X "DOCTOR AMOUNT PAID,PRIVATE INSURNCE(IMP)"; label variable IPDVA96X "DOCTOR AMOUNT PAID, VETERANS (IMPUTED)"; label variable IPDCH96X "DOCTOR AMOUNT PAID, CHAMP/CHAMPVA (IMP)"; label variable IPDOF96X "DOCTOR AMOUNT PAID, OTHER FEDERAL (IMP)"; label variable IPDSL96X "DOCTOR AMOUNT PAID,STATE/LOCAL GOVT(IMP)"; label variable IPDWC96X "DOCTOR AMOUNT PAID, WORKER S COMP (IMP)"; label variable IPDOR96X "DOCTOR AMOUNT PAID, OTHER PRIVATE (IMP)"; label variable IPDOU96X "DOCTOR AMOUNT PAID, OTHER PUBLIC (IMP)"; label variable IPDOT96X "DOCTOR AMOUNT PAID,OTHER INSURANCE (IMP)"; label variable IPDXP96X "DOCTOR SUM OF PAYMENTS IPDSF96X-IPDOU96X"; label variable IPDTC96X "DOCTOR TOTAL CHARGE (IMPUTED)"; label variable IMPIPFSF "IMPUTATION FLAG FOR IPFSF96X"; label variable IMPIPFMR "IMPUTATION FLAG FOR IPFMR96X"; label variable IMPIPFMD "IMPUTATION FLAG FOR IPFMD96X"; label variable IMPIPFPV "IMPUTATION FLAG FOR IPFPV96X"; label variable IMPIPFVA "IMPUTATION FLAG FOR IPFVA96X"; label variable IMPIPFCH "IMPUTATION FLAG FOR IPFCH96X"; label variable IMPIPFOF "IMPUTATION FLAG FOR IPFOF96X"; label variable IMPIPFSL "IMPUTATION FLAG FOR IPFSL96X"; label variable IMPIPFWC "IMPUTATION FLAG FOR IPFWC96X"; label variable IMPIPFOR "IMPUTATION FLAG FOR IPFOR96X"; label variable IMPIPFOU "IMPUTATION FLAG FOR IPFOU96X"; label variable IMPIPFOT "IMPUTATION FLAG FOR IPFOT96X"; label variable IMPIPCHG "IMPUTATION STATUS OF IPFTC96X"; label variable IMPIPNUM "# DR RECORDS IMPUTED PER PROVIDER"; label variable WTDPER96 "POVERTY/MORTALITY ADJ PERSON WEIGHT"; label variable VARPSU96 "VARIANCE ESTIMATION PSU,1996"; label variable VARSTR96 "VARIANCE ESTIMATION STRATUM,1996"; *DEFINE VALUE LABELS FOR REPORTS; label define HC10DF10001X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 1 "1 YES" 2 "2 NO" ; label define HC10DF10002X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 1 "1 YES" 2 "2 NO" ; label define HC10DF10003X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 1 "1 YES" 2 "2 NO" ; label define HC10DF10004X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 1 "1 YES" 2 "2 NO" ; label define HC10DF10005X 1 "1 ROUND 1" 2 "2 ROUND 2" 3 "3 ROUND 3" ; label define HC10DF10006X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 1 "1 FLAT FEE STEM" 2 "2 FLAT FEE LEAF" ; label define HC10DF10007X -1 "-1 INAPPLICABLE" 0 "0 UNIMPUTED TLCHRG" 1 "1 FAC IMP DONOR'S TLCHRG" 2 "2 IMPUTED TLCHRG" 3 "3 BOTH RECIPIENTS AND DONORS" ; label define HC10DF10008X 0 "0 UNIMPUTED" 1 "1 IMPUTED" ; label define HC10DF10009X 0 "0 UNIMPUTED" 1 "1 IMPUTED" ; label define HC10DF10010X 0 "0 UNIMPUTED" 1 "1 IMPUTED" ; label define HC10DF10011X 0 "0 UNIMPUTED" 1 "1 IMPUTED" ; label define HC10DF10012X 0 "0 UNIMPUTED" 1 "1 IMPUTED" ; label define HC10DF10013X 0 "0 UNIMPUTED" 1 "1 IMPUTED" ; label define HC10DF10014X 0 "0 UNIMPUTED" 1 "1 IMPUTED" ; label define HC10DF10015X 0 "0 UNIMPUTED" 1 "1 IMPUTED" ; label define HC10DF10016X 0 "0 UNIMPUTED" 1 "1 IMPUTED" ; label define HC10DF10017X 0 "0 UNIMPUTED" 1 "1 IMPUTED" ; label define HC10DF10018X 0 "0 UNIMPUTED" 1 "1 IMPUTED" ; label define HC10DF10019X 0 "0 UNIMPUTED" 1 "1 IMPUTED" ; label define HC10DF10020X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" ; label define HC10DF10021X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" ; label define HC10DF10022X -9 "-9 NOT ASCERTAINED" 1995 "1995" 1996 "1996" ; label define HC10DF10023X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10024X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10025X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10026X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10027X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10028X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10029X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10030X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10031X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10032X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10033X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10034X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10035X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10036X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10037X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" ; label define HC10DF10038X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 95 "95 STILL IN HOSPITAL" ; label define HC10DF10039X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 1996 "1996" ; label define HC10DF10040X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10041X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10042X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10043X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10044X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10045X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10046X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10047X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10048X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10049X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10050X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10051X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10052X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10053X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10054X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10055X -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10056X 0 "0 NO BABY EXPENDITURES" 1 "1 BABY EXPENDITURES INCLUDED" ; label define HC10DF10057X 1 "1 HAS MPC DATA" 2 "2 NO MPC DATA" ; label define HC10DF10058X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 0 "0" ; label define HC10DF10059X -9 "-9 NOT ASCERTAINED" 0 " 0" ; label define HC10DF10060X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 1 "1 OPERATION OR SURGICAL PROCEDURE" 2 "2 TREATMENT/THERAPY" 3 "3 DIAGNOSTIC TESTS ONLY" 4 "4 GIVE BIRTH TO A BABY (MOTHER)" 5 "5 TO BE BORN (BABY)" 91 "91 OTHER SPECIFY" ; label define HC10DF10061X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 1 "1 YES" 2 "2 NO" ; label define HC10DF10062X -1 "-1 INAPPLICABLE" -7 "-7 REFUSED" -8 "-8 DK" -9 "-9 NOT ASCERTAINED" 1 "1 APPENDECTOMY" 10 "10 HERNIA REPAIR" 11 "11 HYSTERECTOMY" 12 "12 JOINT (HIP/KNEE) REPLACEMENT SURGERY" 13 "13 MASTECTOMY/LUMPECTOMY" 14 "14 PACEMAKER INSERTION" 15 "15 PLASTIC/RECONSTRUCTIVE SURGERY" 16 "16 PROSTATE SURGERY (PROSTATECTOMY)" 17 "17 SPINAL DISC SURGERY (SLIPPED/PROLAPSED)" 18 "18 SURGICAL SETTING OF BROKEN BONE" 19 "19 THYROID SURGERY (THYROIDECTOMY)" 2 "2 ARTHROSCOPIC SURGERY (VISUAL OF JOINTS)" 20 "20 TISSUE BIOPSY" 21 "21 TONSILLECTOMY" 3 "3 CARDIAC CATHETERIZATION" 4 "4 CATARACT SURGERY" 5 "5 CIRCUMCISION" 6 "6 CORONARY BYPASS" 7 "7 D AND C (DILATION AND CURETTAGE)" 8 "8 DENTAL SURGERY" 9 "9 GALLBLADDER SURGERY (CHOLECYSTECTOMY)" 91 "91 OTHER" ; label define HC10DF10063X -8 "-8 DK" 0 " 0 NO" 1 " 1 YES" ; * ASSOCIATE VARIABLES WITH VALUE LABEL DEFINITIONS; label value ANYOPER HC10DF10001X; label value DROUTSID HC10DF10002X; label value DSCHPMED HC10DF10003X; label value EMERROOM HC10DF10004X; label value EVENTRN HC10DF10005X; label value FFIPTYPX HC10DF10006X; label value IMPIPCHG HC10DF10007X; label value IMPIPFCH HC10DF10008X; label value IMPIPFMD HC10DF10009X; label value IMPIPFMR HC10DF10010X; label value IMPIPFOF HC10DF10011X; label value IMPIPFOR HC10DF10012X; label value IMPIPFOT HC10DF10013X; label value IMPIPFOU HC10DF10014X; label value IMPIPFPV HC10DF10015X; label value IMPIPFSF HC10DF10016X; label value IMPIPFSL HC10DF10017X; label value IMPIPFVA HC10DF10018X; label value IMPIPFWC HC10DF10019X; label value IPBEGDD HC10DF10020X; label value IPBEGMM HC10DF10021X; label value IPBEGYR HC10DF10022X; label value IPDCH96X HC10DF10023X; label value IPDMD96X HC10DF10024X; label value IPDMR96X HC10DF10025X; label value IPDOF96X HC10DF10026X; label value IPDOR96X HC10DF10027X; label value IPDOT96X HC10DF10028X; label value IPDOU96X HC10DF10029X; label value IPDPV96X HC10DF10030X; label value IPDSF96X HC10DF10031X; label value IPDSL96X HC10DF10032X; label value IPDTC96X HC10DF10033X; label value IPDVA96X HC10DF10034X; label value IPDWC96X HC10DF10035X; label value IPDXP96X HC10DF10036X; label value IPENDDD HC10DF10037X; label value IPENDMM HC10DF10038X; label value IPENDYR HC10DF10039X; label value IPEXP96X HC10DF10040X; label value IPFCH96X HC10DF10041X; label value IPFMD96X HC10DF10042X; label value IPFMR96X HC10DF10043X; label value IPFOF96X HC10DF10044X; label value IPFOR96X HC10DF10045X; label value IPFOT96X HC10DF10046X; label value IPFOU96X HC10DF10047X; label value IPFPV96X HC10DF10048X; label value IPFSF96X HC10DF10049X; label value IPFSL96X HC10DF10050X; label value IPFTC96X HC10DF10051X; label value IPFVA96X HC10DF10052X; label value IPFWC96X HC10DF10053X; label value IPFXP96X HC10DF10054X; label value IPTCH96X HC10DF10055X; label value MBLINK HC10DF10056X; label value MPCDATA HC10DF10057X; label value NUMNIGHT HC10DF10058X; label value NUMNIGHX HC10DF10059X; label value RSNINHOS HC10DF10060X; label value SPECCOND HC10DF10061X; label value SURGPROC HC10DF10062X; label value VAPLACE HC10DF10063X; *DISPLAY A DESCRIPTION OF STATA FILE; describe; *LIST FIRST 20 OBSERVATIONS IN THE FILE; list in 1/20; save HC10DF1, replace; #delimit cr * data file is stored in HC10DF1.dta * log file is stored in HC10DF1.log log close /************************************************************************************************ NOTES: 1. This program has been tested on Stata Version 10 (for Windows). 2. This program will create a permanent Stata dataset. All additional analyses can be run using this dataset. In addition to the dataset, this program creates a log file named HC10DF1.LOG and a data file named HC10DF1.DTA. If these files (HC10DF1.DTA and HC10DF1.LOG) already exist in the working directory, they will be replaced when this program is executed. 3. If the program ends prematurely, the log file will remain open. Before running this program again, the user should enter the following Stata command: log close 4. The cd command assigns C:\MEPS\DATA as the working directory and location of the input ASCII and output .DTA and .LOG files and can be modified by the user as necessary. 5. Stata commands end with a carriage return by default. The command #delimit ; temporarily changes the command ending delimiter from a carriage return to a semicolon. 6. The infix command assumes that the input variables are numeric unless the variable name is prefaced by str. For example, DUPERSID is the a string (or character) variable. ************************************************************************************************/