pub struct TypedCsvReader { /* private fields */ }Expand description
A CSV reader that exposes per-column typed access after type inference.
§Example
use oxiphysics_io::csv::TypedCsvReader;
let data = "id,x,active\n1,3.14,true\n2,2.71,false\n";
let reader = TypedCsvReader::from_str(data).unwrap();
let ids = reader.column_as_i64("id").unwrap();
assert_eq!(ids, vec![1, 2]);
let xs = reader.column_as_f64("x").unwrap();
assert!((xs[0] - 3.14).abs() < 1e-10);
let active = reader.column_as_bool("active").unwrap();
assert_eq!(active, vec![true, false]);Implementations§
Source§impl TypedCsvReader
impl TypedCsvReader
Sourcepub fn from_str(data: &str) -> Result<Self, Error>
pub fn from_str(data: &str) -> Result<Self, Error>
Parse a CSV string with the default comma delimiter.
Sourcepub fn with_delimiter(data: &str, delimiter: char) -> Result<Self, Error>
pub fn with_delimiter(data: &str, delimiter: char) -> Result<Self, Error>
Parse a CSV string with a custom delimiter.
Sourcepub fn column_type(&self, name: &str) -> Result<ColumnType, Error>
pub fn column_type(&self, name: &str) -> Result<ColumnType, Error>
Return the inferred type of a named column.
Sourcepub fn column_as_i64(&self, name: &str) -> Result<Vec<i64>, Error>
pub fn column_as_i64(&self, name: &str) -> Result<Vec<i64>, Error>
Return a named column parsed as i64.
Sourcepub fn column_as_f64(&self, name: &str) -> Result<Vec<f64>, Error>
pub fn column_as_f64(&self, name: &str) -> Result<Vec<f64>, Error>
Return a named column parsed as f64.
Auto Trait Implementations§
impl Freeze for TypedCsvReader
impl RefUnwindSafe for TypedCsvReader
impl Send for TypedCsvReader
impl Sync for TypedCsvReader
impl Unpin for TypedCsvReader
impl UnsafeUnpin for TypedCsvReader
impl UnwindSafe for TypedCsvReader
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
Source§fn to_subset(&self) -> Option<SS>
fn to_subset(&self) -> Option<SS>
The inverse inclusion map: attempts to construct
self from the equivalent element of its
superset. Read moreSource§fn is_in_subset(&self) -> bool
fn is_in_subset(&self) -> bool
Checks if
self is actually part of its subset T (and can be converted to it).Source§fn to_subset_unchecked(&self) -> SS
fn to_subset_unchecked(&self) -> SS
Use with care! Same as
self.to_subset but without any property checks. Always succeeds.Source§fn from_subset(element: &SS) -> SP
fn from_subset(element: &SS) -> SP
The inclusion map: converts
self to the equivalent element of its superset.