Struct AttributeBuilder

pub struct AttributeBuilder<'a> { /* private fields */ }

Utility struct for constructing Attributes.

Implementations

impl<'a> AttributeBuilder<'a>

pub fn new<S: Into<String>>(name: S) -> Self

Create a new attribute with the given name. The name must be unique.

pub fn values(self, values: &[Option<&str>]) -> Self

Set the values of this attribute. The order of the values must be consistent with the order of the documents as passed to Training.

pub fn filter(self, function: &'a dyn Fn(&Selector) -> bool) -> Self

Set the filter function of this attribute. A selector for this attribute is only considered valid if the filter function returns true on it.

pub fn build(self) -> Attribute<'a>

Build the attribute.