Struct ndarray::Slice [−][src]
A slice (range with step size).
end
is an exclusive index. Negative begin
or end
indexes are counted
from the back of the axis. If end
is None
, the slice extends to the end
of the axis.
See also the s![]
macro.
Examples
Slice::new(0, None, 1)
is the full range of an axis. It can also be
created with Slice::from(..)
. The Python equivalent is [:]
.
Slice::new(a, b, 2)
is every second element from a
until b
. It can
also be created with Slice::from(a..b).step_by(2)
. The Python equivalent
is [a:b:2]
.
Slice::new(a, None, -1)
is every element, from a
until the end, in
reverse order. It can also be created with Slice::from(a..).step_by(-1)
.
The Python equivalent is [a::-1]
.
Fields
start: isize
end: Option<isize>
step: isize
Methods
impl Slice
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impl Slice
pub fn new(start: isize, end: Option<isize>, step: isize) -> Slice
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pub fn new(start: isize, end: Option<isize>, step: isize) -> Slice
Create a new Slice
with the given extents.
See also the From
impls, converting from ranges; for example
Slice::from(i..)
or Slice::from(j..k)
.
step
must be nonzero.
(This method checks with a debug assertion that step
is not zero.)
pub fn step_by(self, step: isize) -> Self
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pub fn step_by(self, step: isize) -> Self
Create a new Slice
with the given step size (multiplied with the
previous step size).
step
must be nonzero.
(This method checks with a debug assertion that step
is not zero.)
Trait Implementations
impl Copy for Slice
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impl Copy for Slice
impl Clone for Slice
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impl Clone for Slice
fn clone(&self) -> Slice
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fn clone(&self) -> Slice
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl Debug for Slice
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impl Debug for Slice
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl PartialEq for Slice
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impl PartialEq for Slice
fn eq(&self, other: &Slice) -> bool
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fn eq(&self, other: &Slice) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &Slice) -> bool
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fn ne(&self, other: &Slice) -> bool
This method tests for !=
.
impl Eq for Slice
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impl Eq for Slice
impl Hash for Slice
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impl Hash for Slice
fn hash<__H: Hasher>(&self, state: &mut __H)
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fn hash<__H: Hasher>(&self, state: &mut __H)
Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
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fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl From<Range<isize>> for Slice
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impl From<Range<isize>> for Slice
impl From<RangeInclusive<isize>> for Slice
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impl From<RangeInclusive<isize>> for Slice
fn from(r: RangeInclusive<isize>) -> Slice
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fn from(r: RangeInclusive<isize>) -> Slice
Performs the conversion.
impl From<RangeFrom<isize>> for Slice
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impl From<RangeFrom<isize>> for Slice
impl From<RangeTo<isize>> for Slice
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impl From<RangeTo<isize>> for Slice
impl From<RangeToInclusive<isize>> for Slice
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impl From<RangeToInclusive<isize>> for Slice
fn from(r: RangeToInclusive<isize>) -> Slice
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fn from(r: RangeToInclusive<isize>) -> Slice
Performs the conversion.
impl From<Range<usize>> for Slice
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impl From<Range<usize>> for Slice
impl From<RangeInclusive<usize>> for Slice
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impl From<RangeInclusive<usize>> for Slice
fn from(r: RangeInclusive<usize>) -> Slice
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fn from(r: RangeInclusive<usize>) -> Slice
Performs the conversion.
impl From<RangeFrom<usize>> for Slice
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impl From<RangeFrom<usize>> for Slice
impl From<RangeTo<usize>> for Slice
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impl From<RangeTo<usize>> for Slice
impl From<RangeToInclusive<usize>> for Slice
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impl From<RangeToInclusive<usize>> for Slice
fn from(r: RangeToInclusive<usize>) -> Slice
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fn from(r: RangeToInclusive<usize>) -> Slice
Performs the conversion.
impl From<Range<i32>> for Slice
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impl From<Range<i32>> for Slice
impl From<RangeInclusive<i32>> for Slice
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impl From<RangeInclusive<i32>> for Slice
fn from(r: RangeInclusive<i32>) -> Slice
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fn from(r: RangeInclusive<i32>) -> Slice
Performs the conversion.
impl From<RangeFrom<i32>> for Slice
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impl From<RangeFrom<i32>> for Slice
impl From<RangeTo<i32>> for Slice
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impl From<RangeTo<i32>> for Slice
impl From<RangeToInclusive<i32>> for Slice
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impl From<RangeToInclusive<i32>> for Slice
fn from(r: RangeToInclusive<i32>) -> Slice
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fn from(r: RangeToInclusive<i32>) -> Slice
Performs the conversion.
impl From<RangeFull> for Slice
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impl From<RangeFull> for Slice
impl From<Slice> for SliceOrIndex
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impl From<Slice> for SliceOrIndex
fn from(s: Slice) -> SliceOrIndex
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fn from(s: Slice) -> SliceOrIndex
Performs the conversion.