Struct SampleMetadata 

pub struct SampleMetadata {
    pub data: RecordBatch,
}

Sample metadata as Arrow RecordBatch

Columns: gsm_accession, title, characteristic_key, characteristic_value One row per characteristic per sample

Fields

data: RecordBatch

Arrow RecordBatch with sample metadata

Implementations

impl SampleMetadata

pub fn from_soft<R>(reader: SoftReader<R>) -> Result<Self>

where R: BufRead,

Build sample metadata from SOFT reader

Creates a RecordBatch with columns:

• gsm_accession: Sample GSM accession ID
• title: Sample title
• characteristic_key: Characteristic name (e.g., “tissue”, “cell type”)
• characteristic_value: Characteristic value

Errors

Returns an error if the SOFT data cannot be parsed or if Arrow data construction fails.

pub fn from_samples(samples: &[GsmRecord]) -> Result<Self>

Build sample metadata from a slice of already-collected GsmRecords.

Adds a channel_index column (UInt8) to distinguish characteristics from different channels in multi-channel (e.g. two-colour) samples.

Errors

Returns an error if Arrow data construction fails.

Trait Implementations

impl Clone for SampleMetadata

fn clone(&self) -> SampleMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SampleMetadata

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

Formats the value using the given formatter.