Trait agnes::select::Field

pub trait Field<DTypes> where
    DTypes: DTypeList, {
    fn field<'a, T: 'a + DataType<DTypes>, I: Into<FieldIdent>>(
        &'a self, 
        ident: I
    ) -> Result<Selection<DTypes, Self::Output, T>>
    where
        Self: SelectField<'a, T, DTypes>,
        DTypes: 'a + AssocTypes,
        DTypes::Storage: TypeSelector<DTypes, T>,
    { ... }
}

Trait for accessing the data of a single field as a Selection struct which implements DataIndex.

Provided Methods

fn field<'a, T: 'a + DataType<DTypes>, I: Into<FieldIdent>>(
    &'a self,
    ident: I
) -> Result<Selection<DTypes, Self::Output, T>> where
    Self: SelectField<'a, T, DTypes>,
    DTypes: 'a + AssocTypes,
    DTypes::Storage: TypeSelector<DTypes, T>, 

Returns a Selection struct containing the data for the field specified by ident.

This method is a convenience method for calling the select method on the SelectField trait.

Implementors

• impl<DTypes> Field<DTypes> for DataView<DTypes> where     DTypes: DTypeList,

• impl<DTypes> Field<DTypes> for DataFrame<DTypes> where     DTypes: DTypeList,