Struct DataFrame

pub struct DataFrame { /* private fields */ }

Implementations

impl DataFrame

pub fn col<T, S>(&self, name: &str) -> Result<Tensor<T, S>>

where T: TensorValue, S: Shape,

pub fn icol<T, S>(&self, col: usize) -> Result<Tensor<T, S>>

where T: TensorValue, S: Shape,

pub fn rows<R: RowFormat>(&self) -> Result<R::View>

pub fn ncols(&self) -> usize

pub fn nrows(&self) -> usize

pub fn column(&self, i: usize) -> &NamedColumn

pub fn pretty_print(&self) -> impl Display + '_

Examples found in repository

examples/tensor.rs (line 22)

fn main() {
    let x = Tensor::linspace(0_f32, 10., 100).cos();
    let y = Tensor::linspace(0_f32, 10., 100).sin();

    let mask = Tensor::range(0_i32, 100, 1) % 2;
    let y = y.with_mask(mask.eq(0));
    let z = x.unsqueeze(0) * y.unsqueeze(-1);
    println!("{:?}", z);

    let s1 = tensor::tensor!["A".to_string(), "B".to_string(), "C".to_string()];
    let s2 = tensor::tensor![Some("A".to_string()), None, Some("B".to_string())];
    println!("{:?}", s1);
    println!("{:?}", s1.eq(s2));

    let df = tensor::frame!(
        x = Tensor::linspace(0_f32, 10., 100).cos().reshape((10, 10)),
        y = Tensor::linspace(0_f32, 10., 10).sin(),
    );
    println!("{}", df.pretty_print());
}

pub fn arrow_schema(&self) -> Schema

Trait Implementations

impl Clone for DataFrame

fn clone(&self) -> DataFrame

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DataFrame

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

Formats the value using the given formatter.

impl Frame for DataFrame

fn ncols(&self) -> usize

fn nrows(&self) -> usize

fn column(&self, i: usize) -> &NamedColumn

fn columns(&self) -> FrameColIter<'_, Self>

impl From<&DataFrame> for RecordBatch

fn from(frame: &DataFrame) -> Self

Converts to this type from the input type.

impl From<DataFrame> for RecordBatch

fn from(frame: DataFrame) -> Self

Converts to this type from the input type.

impl FromIterator<NamedColumn> for DataFrame

fn from_iter<T: IntoIterator<Item = NamedColumn>>(iter: T) -> Self

Creates a value from an iterator.

impl TryFrom<&RecordBatch> for DataFrame

type Error = Error

The type returned in the event of a conversion error.

fn try_from(rb: &RecordBatch) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<RecordBatch> for DataFrame

type Error = Error

The type returned in the event of a conversion error.

fn try_from(rb: RecordBatch) -> Result<Self, Self::Error>

Performs the conversion.