REDEFINE MULTIPLE DICHOTOMY FROM CONDITIONS command

See Crunch Automation basics for more information.

The REDEFINE MULTIPLE DICHOTOMY FROM CONDITIONS command redefines a variable that is created using the CREATE MULTIPLE DICHOTOMY FROM CONDITIONS command. This command helps redefine a multiple response variable indicating the logical condition and optionally indicates the base for the evaluation, either by indicating the VALID rows or MISSING rows as a logical expression.

The MAPPING and VALID/MISSING block is the the same as those found in the CREATE MULTIPLE DICHOTOMY FROM CONDITIONS command.

REDEFINE alias AS MULTIPLE DICHOTOMY FROM CONDITIONS
    MAPPING
        SELECT condition [(MISSING|VALID) condition] LABEL "label" [ALIAS alias],
        ....
        SELECT condition [MISSING|VALID) condition] LABEL "label" [ALIAS alias]
    END
    [MISSING|VALID) condition]
[TITLE "string"]
[DESCRIPTION "string"]
[NOTES "string"];

Examples

REDEFINE my_mr_cond AS MULTIPLE DICHOTOMY FROM CONDITIONS
    MAPPING
        SELECT A=1 VALID is_valid(A) LABEL "First" ALIAS s1,
        SELECT B=1 OR C = 1 MISSING B != 1 LABEL "Second",
        SELECT D != 1 AND (C != 1) LABEL "Third" ALIAS s2
    END
TITLE "new_mr";

REDEFINE my_mr_cond AS MULTIPLE DICHOTOMY FROM CONDITIONS
    MAPPING
        SELECT A=1 LABEL "First" ALIAS s1,
        SELECT B=1 OR C = 1 LABEL "Second",
        SELECT D != 1 AND (C != 1) LABEL "Third" ALIAS s2
    END
    MISSING is_missing(asked) OR asked = 1;

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