Struct PlotRowStream 

pub struct PlotRowStream { /* private fields */ }

An iterator over per-bar plot() rows returned by Instance::plot_rows.

Call columns once to obtain the column titles, then drive the stream with next_row.

Example

let mut stream = instance.plot_rows(symbol, tf);
let columns = stream.columns().to_vec();
while let Some(row) = stream.next_row().await {
    let row = row?;
    // row is &[Option<f64>] aligned to `columns`
}

Implementations

impl PlotRowStream

pub fn columns(&self) -> &[Option<String>]

Returns the plot() column titles in declaration order.

pub async fn next_row(&mut self) -> Option<Result<&[Option<f64>], Error>>

Returns the next completed bar row, or None when the stream ends.

The returned slice borrows from an internal buffer that is reused across calls; copy it (e.g. .to_vec()) if you need it to outlive the next next_row call.