MERGE  -----   THE FORTRAN PROGRAM MERGE IS INTENDED TO SUPPLEMENT THE PROGRAM  SURVEY, ENABLING THE USER TO COMBINE SEVERAL DATA FILES INTO  ONE. RESPONDENTS TO A QUESTIONNAIRE MAY BE DIVIDED INTO SETS  IN ANY CONVENIENT MANNER AND A SEPARATE DATA FILE CREATED FOR  EACH SET. THESE FILES MAY THEN BE MERGED INTO ONE LARGE FILE  FOR SUBSEQUENT TABULATION OR ANALYSIS BY THE PROGRAMS SORTER  AND CROSS.    PROGRAM MERGE   DESCRIPTION  THIS PROGRAM COMBINES UP TO 64 FILES OF RESPONSES TO THE SAME  QUESTIONS BY DIFFERENT RESPONDENTS.   SOURCE  NORMAN W. JOHNSON, DEPARTMENT OF MATHEMATICS, WHEATON COLLEGE,  NORTON, MASS.   INSTRUCTIONS  EACH SET OF CODED RESPONSES TO THE QUESTIONS SHOULD BE WRITTEN  INTO AN ASCII DATA FILE BY THE PROGRAM SURVEY. THE ORDER OF THE  QUESTIONS SHOULD BE THE SAME IN EACH FILE, THOUGH IT IS PERMIS-  SIBLE FOR SOME FILES TO HAVE EXTRA QUESTIONS AT THE END.   THE PROGRAM WILL REQUEST THE NUMBER OF FILES TO BE MERGED AND  THEIR NAMES. THE NAME OF EACH FILE MAY BE ENTERED INDIVIDUALLY.  ALTERNATIVELY, INSTEAD OF ENTERING A FILE NAME, THE USER MAY  SIMPLY PRESS , IN WHICH CASE THE PROGRAM WILL ASSUME  THAT SUCCEEDING FILES ARE NAMED "SET1", "SET2", ETC. THE PRO-  GRAM WILL ALSO ASK FOR THE NAME (NOT MORE THAN 5 CHARACTERS)  THAT THE NEW DATA FILE IS TO HAVE AND FOR A DESCRIPTION OF THE  SURVEY (NOT MORE THAN 48 CHARACTERS).