Struct Pfm 

pub struct Pfm {
    pub mass_error_ppm: f64,
    pub feature_idx: u32,
    pub peptide_idx: u32,
    pub isotope_offset: i8,
    pub decoy: bool,
}

One peptide-feature match.

Field order + widths are chosen to keep the struct at 24 bytes (down from 32): the f64 leads (8-byte aligned), the two indices are u32 (feature and peptide counts are well under 2^32 — 211k features, ~1.2M peptides on run10), and the two 1-byte tails pack into the trailing padding. At ~17M reduced PFMs this saves ~136 MB versus usize indices. Values are exact, so output is unchanged.

Fields

mass_error_ppm: f64

Signed mass error (peptide - offset-corrected feature center), in ppm.

feature_idx: u32

peptide_idx: u32

isotope_offset: i8

decoy: bool

Trait Implementations

impl Clone for Pfm

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Pfm

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

Formats the value using the given formatter.