Struct StructNameSpace

pub struct StructNameSpace(/* private fields */);

Specialized expressions for Struct dtypes.

Implementations

impl StructNameSpace

pub fn field_by_index(self, index: i64) -> Expr

pub fn field_by_names<I, S>(self, names: I) -> Expr

where I: IntoIterator<Item = S>, S: Into<PlSmallStr>,

Retrieve one or multiple of the fields of this StructChunked as a new Series. This expression also expands the "*" wildcard column.

pub fn field_by_name(self, name: &str) -> Expr

Retrieve one of the fields of this StructChunked as a new Series. This expression also supports wildcard “*” and regex expansion.

pub fn rename_fields<I, S>(self, names: I) -> Expr

where I: IntoIterator<Item = S>, S: Into<PlSmallStr>,

Rename the fields of the StructChunked.

pub fn _rename_fields_impl(self, names: Arc<[PlSmallStr]>) -> Expr

pub fn json_encode(self) -> Expr

Available on crate feature json only.

pub fn with_fields(self, fields: Vec<Expr>) -> Result<Expr, PolarsError>