Struct bookdata::interactions::ratings::TimestampRatingRecord

pub struct TimestampRatingRecord {
    pub user: i32,
    pub item: i32,
    pub rating: f32,
    pub last_rating: f32,
    pub timestamp: i64,
    pub last_time: i64,
    pub nratings: i32,
}

Record for a single output rating.

Fields

user: i32

item: i32

rating: f32

last_rating: f32

timestamp: i64

last_time: i64

nratings: i32

Trait Implementations

impl Debug for TimestampRatingRecord

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

Formats the value using the given formatter.

impl FrameBuilder<TimestampRatingRecord> for TimestampRatingRecordFrameBuilder

fn with_capacity(cap: usize) -> Self

Instantiate a frame builder with a specified capacity.

fn append_row(&mut self, row: TimestampRatingRecord)

Add a row to the frame builder.

fn build(self) -> PolarsResult<DataFrame>

Finish the builder and create a data frame.

fn extend<I>(&mut self, iter: I)

where I: IntoIterator<Item = R>,

Add an iterable of items to the frame.

impl<'a> FrameStruct<'a, TimestampRatingRecord> for TimestampRatingRecordFrame<'a>

fn new(df: &'a DataFrame) -> PolarsResult<Self>

fn read_row(&mut self, idx: usize) -> Result<TimestampRatingRecord, RowError>

impl FromRatingSet for TimestampRatingRecord

fn create(user: i32, item: i32, ratings: Vec<(f32, i64)>) -> Self

impl TableRow for TimestampRatingRecord

type Frame<'a> = TimestampRatingRecordFrame<'a>

The frame struct for this row type.

type Builder = TimestampRatingRecordFrameBuilder

The frame builder type for this row type.

fn schema() -> Schema

Get the schema for this table row.