src/ports/postgres/modules/regress/test/logistic.ic.sql_in

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/* -----------------------------------------------------------------------------
 * Test Logistic Regression.
 * -------------------------------------------------------------------------- */

/*
 * The following example is taken from:
 * http://luna.cas.usf.edu/~mbrannic/files/regression/Logistic.html
 * Predicting heart attack
 */
DROP TABLE IF EXISTS patients;
CREATE TABLE patients (
    id INTEGER NOT NULL,
    second_attack INTEGER,
    treatment INTEGER,
    trait_anxiety INTEGER
);

INSERT INTO patients(ID, second_attack, treatment, trait_anxiety) VALUES
( 0, NULL, 1, 70),
( 1, 1, 1, 70),
( 2, 1, 1, 80),
( 3, 1, 1, 50),
( 4, 1, 0, 60),
( 5, 1, 0, 40);

drop table if exists temp_result;
drop table if exists temp_result_summary;
select logregr_train(
    'patients',
    'temp_result',
    'second_attack',
    'ARRAY[1, treatment]',
    Null,
    2,
    'irls'
);