Struct ndarray_npy::NpzReader

pub struct NpzReader<R: Read + Seek> { /* fields omitted */ }

Reader for .npz files.

Example

#[macro_use]
extern crate ndarray;
extern crate ndarray_npy;

use ndarray::prelude::*;
use ndarray_npy::NpzReader;
use std::fs::File;

let mut npz = NpzReader::new(File::open("arrays.npz")?)?;
let a: Array2<i32> = npz.by_name("a")?;
let b: Array1<i32> = npz.by_name("b")?;

Methods

impl<R: Read + Seek> NpzReader<R>

pub fn new(reader: R) -> Result<NpzReader<R>, ReadNpzError>

Creates a new .npz file reader.

pub fn len(&self) -> usize

Returns the number of arrays in the .npz file.

pub fn names(&mut self) -> Result<Vec<String>, ReadNpzError>

Returns the names of all of the arrays in the file.

pub fn by_name<S, D>(     &mut self,     name: &str ) -> Result<ArrayBase<S, D>, ReadNpzError> where     S::Elem: ReadableElement,     S: DataOwned,     D: Dimension,

Reads an array by name.

pub fn by_index<S, D>(     &mut self,     index: usize ) -> Result<ArrayBase<S, D>, ReadNpzError> where     S::Elem: ReadableElement,     S: DataOwned,     D: Dimension,

Reads an array by index in the .npz file.