conn.context |
ConnectionContext
The connection to the SAP HANA system.
|
data |
DataFrame
DataFrame containing the data.
|
key |
character, optional
Name of the ID column of data.
|
features |
list of character, optional
Names of the feature columns.
If is not provided, it defaults to all non-ID, no-label columns.
|
label |
character, optional
Name of the column in data
that specifies the dependent variable.
If is not provided, it defaults the last column.
|
c |
double
Trade-off between training error and margin.
value range: > 0.
Defaults to 100.
|
kernel |
{"linear", "poly", "rbf", "sigmoid"}, optionoal
kernel function.
Defaults to "rbf".
|
degree |
integer Coefficient for the POLY KERNEL type.
Value range: >= 1
Defaults to 3.
|
gamma |
double, optional Coefficient for the RBF KERNEL type.
Defaults to 1.0/number of features in the dataset Only valid
for RBF KERNEL type.
|
coef.lin |
double, optional
Coefficient for the POLY/SIGMOID KERNELtype.
Defaults to 0.
|
coef.const |
double, optional
Coefficient for the POLY/SIGMOID KERNEL type.
Defaults to 0.
|
shrink |
logical, optional Decides whether to use shrink strategy
or not:
Defaults to TRUE.
|
tol |
double, optional Specifies the error tolerance in the training
process. The value must be greater than 0. Defaults to 0.001.
|
evaluation.seed |
integer, optional The random seed in parameter
selection. The value must be greater than 0. Defaults to 0.
|
thread.ratio |
double, optional Controls the proportion of available
threads that can be used by this function. The value range is from
0 to 1, where 0 indicates a single thread, and 1 indicates up to all
available threads. Values between 0 and 1 will use up to that
percentage of available threads. Defaults to 0.0.
|
scale.info |
character, optional
"no" : No scale
"standardization" : The algorithm transforms the data to
have zero mean and unit variance.
"rescale" : The algorithm rescales the range of the
features to scale the range in [-1,1].
Defaults to "standardization".
|
scale.label |
logical, optional
Controls whether to standardize the label for SVR.
Valid only when scale.info is "standardization".
Defaults to TRUE.
|
categorical.variable |
character or list of characters, optional
Column names in the data table used as category variable.
|
category.weight |
double, optional Represents the weight of category
attributes. The value must be greater than 0.
Defaults to 0.707.
|
regression.eps |
double, optional Epsilon width of tube for regression.
Defaults to 0.1.
|
handle.missing |
logical, optional
Whether to impute the missing values of the input data or not.
If set to FALSE, all rows with missing values will be deleted.
Defaults to TRUE.
|