Struct NpzArchive 

pub struct NpzArchive {
    pub arrays: Vec<(String, NpyArray)>,
}

A higher-level NPZ archive that stores typed NpyArray objects by name.

Unlike NpzWriter, this type stores fully parsed NpyArray values and supports reading them back without specifying the dtype at call time.

Fields

arrays: Vec<(String, NpyArray)>

Named arrays stored in the archive.

Implementations

impl NpzArchive

pub fn new() -> Self

Create an empty archive.

pub fn insert(&mut self, name: &str, array: NpyArray)

Add an NpyArray under the given name.

pub fn get(&self, name: &str) -> Option<&NpyArray>

Retrieve a reference to the array with the given name.

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

List all array names.

pub fn remove(&mut self, name: &str) -> bool

Remove an array by name; returns true if it was present.

pub fn len(&self) -> usize

Number of arrays stored.

pub fn is_empty(&self) -> bool

Whether the archive is empty.

pub fn to_bytes(&self) -> Result<Vec<u8>, String>

Serialize to the NPZ container format (compatible with NpzWriter).

pub fn from_bytes(data: &[u8]) -> Result<Self, String>

Deserialize from NPZ container bytes.

impl NpzArchive

pub fn add_array(&mut self, name: &str, array: NpyArray)

Add a pre-built NpyArray under name, replacing any existing entry with that name.

pub fn load_all(data: &[u8]) -> Result<Self, String>

Load all arrays from raw NPZ bytes and return them as a new archive.

This is an alias for NpzArchive::from_bytes with a more descriptive name to match the “load_all” specification.

pub fn iter(&self) -> impl Iterator<Item = (&str, &NpyArray)>

Return an iterator over (name, &NpyArray) pairs.

pub fn merge(&mut self, other: NpzArchive)

Merge another archive into self, overwriting duplicate names.

pub fn total_elements(&self) -> usize

Return the total number of elements across all stored arrays.

Trait Implementations

impl Clone for NpzArchive

fn clone(&self) -> NpzArchive

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NpzArchive

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

Formats the value using the given formatter.

impl Default for NpzArchive

fn default() -> NpzArchive

Returns the “default value” for a type.