Trailing-Edge
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PDP-10 Archives
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decus_20tap2_198111
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decus/20-0047/intro.txt
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THE CROSS PACKAGE
THE CROSS PACKAGE OF PROGRAMS FOR SURVEY ANALYSIS, MODELED IN
PART AFTER DARTMOUTH'S PROJECT IMPRESS, WAS DEVELOPED IN 1972 AT
WHEATON COLLEGE IN NORTON, MASS. THE PACKAGE CONSISTS OF FIVE
PRIMARY PROGRAMS (SURVEY, SORTER, CROSS, MERGE, AND UNITE) AND
THREE SECONDARY ONES (CROSS1, CROSS2, AND XTAB), ALL WRITTEN IN
FORTRAN IV TO BE RUN ON A PDP-10 TIME-SHARING SYSTEM.
THE PROGRAM SURVEY READS CODED RESPONSES TO A QUESTIONNAIRE AND
WRITES THEM INTO AN ASCII DATA FILE.
THE PROGRAM SORTER TABULATES THE CODED RESPONSES TO EACH QUES-
TION OF A QUESTIONNAIRE BY FREQUENCIES OR PERCENTAGES OR BOTH.
THE PROGRAM CROSS CORRELATES RESPONSES TO SELECTED QUESTIONS OF
A QUESTIONNAIRE TO GIVE MARGINAL FREQUENCIES, CROSS-TABULATIONS,
AND OTHER STATISTICS AND PERMITS THE COLLAPSING OF TABLES AND
THE COMBINING OF VARIABLES.
THE PROGRAM MERGE COMBINES UP TO 64 FILES OF RESPONSES TO THE
SAME QUESTIONS BY DIFFERENT RESPONDENTS.
THE PROGRAM UNITE COMBINES TWO FILES OF RESPONSES TO DIFFERENT
QUESTIONS BY THE SAME RESPONDENTS.
THE DATA ANALYSIS PART OF THE PROGRAM CROSS IS AVAILABLE SEPAR-
ATELY AS THE PROGRAM CROSS1. THE DATA MANIPULATION PART CAN BE
RUN SEPARATELY AS THE PROGRAM CROSS2.
THE PROGRAM XTAB CROSS-TABULATES PAIRS OF VARIABLES (WITH OR
WITHOUT A CONTROL VARIABLE) GIVING FREQUENCIES, PERCENTAGES, OR
OTHER STATISTICS DESIRED BY THE USER. DATA ARE ENTERED BY THE
USER INSTEAD OF BEING READ FROM A FILE.