Arguments
x
An object coercable to a Spark DataFrame (typically, a
tbl_spark
).
input
The name of the input column.
reference
The reference label. This variable is omitted when
generating dummy variables (to avoid perfect multi-collinearity if
all dummy variables were to be used in the model fit); to generate
dummy variables for all columns this can be explicitly set as NULL
.
levels
The set of levels for which dummy variables should be generated.
By default, constructs one variable for each unique value occurring in
the column specified by input
.
labels
An optional R list, mapping values in the input
column to column names to be assigned to the associated dummy variable.
envir
An optional R environment; when provided, it will be filled
with useful auxiliary information. See Auxiliary Information for
more information.