Struct ColumnarTable 

pub struct ColumnarTable { /* private fields */ }

A table containing multiple named columns

Implementations

impl ColumnarTable

pub fn new() -> Self

Create a new empty table

pub fn from_columns(columns: Vec<Column>) -> Result<Self>

Create a table from a list of columns

pub fn add_column(&mut self, column: Column) -> Result<()>

Add a column to the table

pub fn num_rows(&self) -> usize

Number of rows in the table

pub fn num_columns(&self) -> usize

Number of columns

pub fn column_names(&self) -> Vec<&str>

Get column names in order

pub fn column(&self, name: &str) -> Result<&Column>

Get a column by name

pub fn column_by_index(&self, idx: usize) -> Result<&Column>

Get a column by index

pub fn columns(&self) -> &[Column]

Get all columns as a slice

pub fn get_f64(&self, name: &str) -> Result<&[f64]>

Get f64 column data by name

pub fn get_i64(&self, name: &str) -> Result<&[i64]>

Get i64 column data by name

pub fn get_str(&self, name: &str) -> Result<&[String]>

Get string column data by name

pub fn get_bool(&self, name: &str) -> Result<&[bool]>

Get bool column data by name

Trait Implementations

impl Clone for ColumnarTable

fn clone(&self) -> ColumnarTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnarTable

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

Formats the value using the given formatter.

impl Default for ColumnarTable

fn default() -> Self

Returns the “default value” for a type.