// Copyright 2014-2016 bluss and ndarray developers.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Methods for two-dimensional arrays.
use imp_prelude::*;
impl<A, S> ArrayBase<S, (Ix, Ix)>
where S: Data<Elem=A>,
{
/// Return an array view of row `index`.
///
/// **Panics** if `index` is out of bounds.
pub fn row(&self, index: Ix) -> ArrayView<A, Ix>
{
self.subview(Axis(0), index)
}
/// Return a mutable array view of row `index`.
///
/// **Panics** if `index` is out of bounds.
pub fn row_mut(&mut self, index: Ix) -> ArrayViewMut<A, Ix>
where S: DataMut
{
self.subview_mut(Axis(0), index)
}
/// Return the number of rows (length of `Axis(0)`) in the two-dimensional array.
pub fn rows(&self) -> Ix {
self.shape().axis(Axis(0))
}
/// Return an array view of column `index`.
///
/// **Panics** if `index` is out of bounds.
pub fn column(&self, index: Ix) -> ArrayView<A, Ix>
{
self.subview(Axis(1), index)
}
/// Return a mutable array view of column `index`.
///
/// **Panics** if `index` is out of bounds.
pub fn column_mut(&mut self, index: Ix) -> ArrayViewMut<A, Ix>
where S: DataMut
{
self.subview_mut(Axis(1), index)
}
/// Return the number of columns (length of `Axis(1)`) in the two-dimensional array.
pub fn cols(&self) -> Ix {
self.shape().axis(Axis(1))
}
}