Struct InMemoryCsvWriter 

pub struct InMemoryCsvWriter { /* private fields */ }

In-memory CSV writer with configurable delimiter and floating-point precision.

Implementations

impl InMemoryCsvWriter

pub fn new(columns: &[&str], delimiter: char) -> Self

Create a new InMemoryCsvWriter with the given column names and delimiter.

pub fn with_precision(self, precision: usize) -> Self

Set the floating-point precision used when formatting values.

pub fn write_row(&self, values: &[f64]) -> Result<String, Error>

Format a single row of values as a delimited string (no newline).

pub fn write_header(&self) -> String

Return the header line (no newline).

pub fn add_row(&mut self, values: Vec<f64>)

Accumulate a row.

pub fn write_all(&self, rows: &[Vec<f64>]) -> String

Render the entire accumulated dataset (header + all rows) as a String.