src/ports/postgres/modules/pca/test/pca_project.ic.sql_in

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/* -----------------------------------------------------------------------------
 * pca Install Check.
 * -------------------------------------------------------------------------- */

-----------------------------------------------------------------------------
-- DENSE pca Project : Make sure all possible default calls for dense pca work
-- Test data (Indentical to SVD). See the SVD module for details
-- on how the data was generated
-----------------------------------------------------------------------------
DROP TABLE IF EXISTS mat;
CREATE TABLE mat (
    row_id integer,
    row_vec double precision[]
);

COPY mat (row_id, row_vec) FROM stdin delimiter '|';
1|{396,1}
2|{691,58}
3|{293,1}
4|{462,532}
5|{304,151}
\.

DROP TABLE IF EXISTS result;
CREATE TABLE result (
    row_id integer,
    principal_components double precision[],
    std_dev double precision,
    proportion double precision
);

DROP TABLE IF EXISTS result_mean;
CREATE TABLE result_mean (
    column_mean double precision[]
);

--To reduce runtime, we are inserting the component data instead of calling pca_train
TRUNCATE TABLE result, result_mean;

COPY result (row_id, principal_components, std_dev, proportion) FROM stdin delimiter '|';
1|{0.16526842327063,-0.366421389980424}|505.194492329765|0.315197084359835
2|{0.291457976390416,-0.152774780364566}|388.886052223584|0.18677111487815
\.

COPY result_mean (column_mean) FROM stdin delimiter '|';
{559.1875,479.6875}
\.


drop table if exists out_table;
drop table if exists residual_table;
drop table if exists result_summary_table;
select pca_project( 'mat',
                    'result',
                    'out_table',
                    'row_id',
                    'residual_table',
                    'result_summary_table');