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SAP HANA Predictive Analysis Library (PAL)

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Table 100:<br />

Name Data Type Default Value Description Dependency<br />

PERCENTAGE Double 1.0 Specifies the percentage<br />

of the input data<br />

to be used to build the<br />

tree model.<br />

For example, if you set<br />

this parameter to 0.7,<br />

70% of the training<br />

data will be used to<br />

build the tree model,<br />

and 30% will be used<br />

to prune the tree<br />

model.<br />

MIN_RE­<br />

CORDS_OF_PARENT<br />

MIN_RE­<br />

CORDS_OF_LEAF<br />

Integer 1 Specifies the stop condition:<br />

if the number of<br />

records is less than<br />

the parameter value,<br />

the algorithm will stop<br />

splitting.<br />

Integer 0 Promises the minimum<br />

number of records<br />

in each leaf.<br />

MAX_DEPTH Integer Number of columns in<br />

the input table which<br />

contains the training<br />

data<br />

Specifies the stop condition:<br />

if the depth of<br />

the tree model is<br />

greater than the parameter<br />

value, the algorithm<br />

will stop splitting.<br />

THREAD_NUMBER Integer 1 Number of threads.<br />

IS_SPLIT_MODEL Integer 1 Indicates whether the<br />

string of the tree<br />

model should be split<br />

or not.<br />

If the value is not 0,<br />

the tree model will be<br />

split, and the length of<br />

each unit is 5000.<br />

140 P U B L I C<br />

<strong>SAP</strong> <strong>HANA</strong> <strong>Predictive</strong> <strong>Analysis</strong> <strong>Library</strong> (<strong>PAL</strong>)<br />

<strong>PAL</strong> Functions

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