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SvrQ

libsvm_rs::qmatrix

Struct SvrQ 

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pub struct SvrQ<'a> { /* private fields */ }
Expand description

Q matrix for ε-SVR and ν-SVR regression.

The regression dual has 2l variables (α_i^+ and α_i^-). The underlying kernel cache stores only l rows of actual kernel evaluations; get_q reorders/signs them into a double-buffered output.

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impl<'a> SvrQ<'a>

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pub fn new(x: &'a [Vec<SvmNode>], param: &SvmParameter) -> Self

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impl<'a> QMatrix for SvrQ<'a>

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fn get_q(&mut self, i: usize, len: usize) -> &[Qfloat] ⓘ

Get column i of the Q matrix, with at least len elements.
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fn get_qd(&self) -> &[f64]

Get the diagonal of Q: QD[i] = Q[i][i].
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fn swap_index(&mut self, i: usize, j: usize)

Swap indices i and j in all internal data structures.

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impl<'a> Freeze for SvrQ<'a>

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impl<'a> RefUnwindSafe for SvrQ<'a>

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impl<'a> Send for SvrQ<'a>

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impl<'a> Sync for SvrQ<'a>

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impl<'a> Unpin for SvrQ<'a>

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impl<'a> UnwindSafe for SvrQ<'a>

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.