SAP HANA Predictive Analysis Library (PAL)

Table Column Column Data Type Description
2nd column Double AIC value
PMML Result (logistic regression
model)
1st column Integer ID
2nd column CLOB, varchar, or nvarchar Logistic regression model in
PMML format
Example
Assume that:
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DM_PAL is a schema belonging to USER1; and
USER1 has been assigned the AFLPM_CREATOR_ERASER_EXECUTE role; and
USER1 has been assigned the AFL__SYS_AFL_AFLPAL_EXECUTE or
AFL__SYS_AFL_AFLPAL_EXECUTE_WITH_GRANT_OPTION role.
Example 1: Fitting logistic regression model without penalties
SET SCHEMA DM_PAL;
DROP TYPE PAL_LOGISTICR_DATA_T;
CREATE TYPE PAL_LOGISTICR_DATA_T AS TABLE("V1" VARCHAR (50),"V2" DOUBLE,"V3"
INTEGER,"CATEGORY" INTEGER);
DROP TYPE PAL_LOGISTICR_RESULT_T;
CREATE TYPE PAL_LOGISTICR_RESULT_T AS TABLE("Coefficient"
varchar(50),"CoefficientValue" DOUBLE,"ZSCORE" DOUBLE, "Pr(>|Z|)" DOUBLE);
DROP TYPE PAL_CONTROL_T;
CREATE TYPE PAL_CONTROL_T AS TABLE("NAME" VARCHAR(50), "INTARGS" INTEGER,
"DOUBLEARGS" DOUBLE, "STRINGARGS" VARCHAR(100));
DROP TYPE PAL_LOGISTICR_STAT_T;
CREATE TYPE PAL_LOGISTICR_STAT_T AS TABLE( "STATISTICS" VARCHAR(20), "VALUE"
DOUBLE);
DROP TYPE PAL_LOGISTICR_PMMLMODEL_T;
CREATE TYPE PAL_LOGISTICR_PMMLMODEL_T AS TABLE( "ID" INTEGER, "PMMLMODEL"
VARCHAR(5000));
DROP table PAL_LOGISTICR_PDATA_TBL;
CREATE column table PAL_LOGISTICR_PDATA_TBL("POSITION" INT, "SCHEMA_NAME"
NVARCHAR(256), "TYPE_NAME" NVARCHAR(256), "PARAMETER_TYPE" VARCHAR(7));
INSERT INTO PAL_LOGISTICR_PDATA_TBL VALUES (1,'DM_PAL',
'PAL_LOGISTICR_DATA_T','IN');
INSERT INTO PAL_LOGISTICR_PDATA_TBL VALUES (2,'DM_PAL', 'PAL_CONTROL_T','IN');
INSERT INTO PAL_LOGISTICR_PDATA_TBL VALUES (3,'DM_PAL',
'PAL_LOGISTICR_RESULT_T','OUT');
INSERT INTO PAL_LOGISTICR_PDATA_TBL VALUES (4,'DM_PAL',
'PAL_LOGISTICR_STAT_T','OUT');
INSERT INTO PAL_LOGISTICR_PDATA_TBL VALUES (5,'DM_PAL',
'PAL_LOGISTICR_PMMLMODEL_T','OUT');
CALL SYS.AFLLANG_WRAPPER_PROCEDURE_DROP('DM_PAL', 'PAL_LOGISTICR_PROC');
CALL SYS.AFLLANG_WRAPPER_PROCEDURE_CREATE('AFLPAL','LOGISTICREGRESSION',
'DM_PAL', 'PAL_LOGISTICR_PROC',PAL_LOGISTICR_PDATA_TBL);
DROP TABLE PAL_LOGISTICR_DATA_TBL;
CREATE COLUMN TABLE PAL_LOGISTICR_DATA_TBL LIKE PAL_LOGISTICR_DATA_T;
INSERT INTO PAL_LOGISTICR_DATA_TBL VALUES ('B',2.62,0,1);
INSERT INTO PAL_LOGISTICR_DATA_TBL VALUES ('B',2.875,0,1);
INSERT INTO PAL_LOGISTICR_DATA_TBL VALUES ('A',2.32,1,1);
INSERT INTO PAL_LOGISTICR_DATA_TBL VALUES ('A',3.215,2,0);
INSERT INTO PAL_LOGISTICR_DATA_TBL VALUES ('B',3.44,3,0);
INSERT INTO PAL_LOGISTICR_DATA_TBL VALUES ('B',3.46,0,0);
INSERT INTO PAL_LOGISTICR_DATA_TBL VALUES ('A',3.57,1,0);
INSERT INTO PAL_LOGISTICR_DATA_TBL VALUES ('B',3.19,2,0);
INSERT INTO PAL_LOGISTICR_DATA_TBL VALUES ('A',3.15,3,0);
SAP HANA Predictive Analysis Library (PAL)
PAL Functions P U B L I C 171