Struct Dataset 

pub struct Dataset {
    pub schema: DataSchema,
    pub records: Vec<DataRecord>,
}

The shared shape. Tables render it; charts build series by field key.

Fields

schema: DataSchema

records: Vec<DataRecord>

Implementations

impl Dataset

pub fn new(schema: DataSchema, records: Vec<DataRecord>) -> Self

pub fn from_records(schema: DataSchema, records: Vec<DataRecord>) -> Self

pub fn from_text_rows( fields: impl IntoIterator<Item = (String, String)>, rows: impl IntoIterator<Item = (String, HashMap<String, String>)>, ) -> Self

Build a dataset from text field definitions and (id, cells) rows.

pub fn field_keys(&self) -> impl Iterator<Item = &str>

pub fn has_field(&self, field: &str) -> bool

Whether field is declared in the dataset schema.

pub fn column_as_numbers( &self, field: &str, ) -> Result<Vec<f64>, ProjectionError>

Extract a numeric column for chart value axes.

Accepts DataValue::Number. DataValue::Null maps to f64::NAN as a gap.

pub fn column_as_categories( &self, field: &str, ) -> Result<Vec<String>, ProjectionError>

Extract a categorical column for band/point axes.

Accepts text, category, date, number, and bool variants (stringified).

Trait Implementations

impl Clone for Dataset

fn clone(&self) -> Dataset

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Dataset

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Dataset

fn default() -> Dataset

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Dataset

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Dataset

fn eq(&self, other: &Dataset) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Dataset

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Dataset