Struct PyCsvReader 

pub struct PyCsvReader {
    pub filename: String,
    pub headers: Vec<String>,
    pub rows: Vec<Vec<f64>>,
}

In-memory CSV reader.

Fields

filename: String

Source filename.

headers: Vec<String>

Column header names (populated from the first row if has_header = true).

rows: Vec<Vec<f64>>

Row-major data storage (rows × columns).

Implementations

impl PyCsvReader

pub fn new(filename: impl Into<String>) -> Self

Create a new CSV reader backed by an in-memory dataset.

pub fn load_data(&mut self, headers: Vec<String>, rows: Vec<Vec<f64>>)

Load in-memory data directly (useful in tests without touching disk).

pub fn read_column(&self, col: usize) -> Vec<f64>

Read a single column by index, returning a Vecf64`.

pub fn read_all_f64(&self) -> Vec<f64>

Return all data as a flat Vecf64` in row-major order.

pub fn header_names(&self) -> &[String]

Return the column header names.

pub fn n_rows(&self) -> usize

Number of data rows.

pub fn n_cols(&self) -> usize

Number of columns (inferred from the first row, or 0 if empty).

Trait Implementations

impl Clone for PyCsvReader

fn clone(&self) -> PyCsvReader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PyCsvReader

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

Formats the value using the given formatter.

impl Default for PyCsvReader

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PyCsvReader

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for PyCsvReader

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

where __S: Serializer,

Serialize this value into the given Serde serializer.