[−][src]Struct opencv::ml::ParamGrid
The structure represents the logarithmic grid range of statmodel parameters.
It is used for optimizing statmodel accuracy by varying model parameters, the accuracy estimate being computed by cross-validation.
Methods
impl ParamGrid[src]
pub fn as_raw_ParamGrid(&self) -> *mut c_void[src]
pub unsafe fn from_raw_ptr(ptr: *mut c_void) -> Self[src]
impl ParamGrid[src]
pub fn min_val(&self) -> Result<f64>[src]
Minimum value of the statmodel parameter. Default value is 0.
pub fn max_val(&self) -> Result<f64>[src]
Maximum value of the statmodel parameter. Default value is 0.
pub fn log_step(&self) -> Result<f64>[src]
Logarithmic step for iterating the statmodel parameter.
The grid determines the following iteration sequence of the statmodel parameter values:
(minVal, minVal*step, minVal*{step}^2, \dots, minVal*{logStep}^n),
where n is the maximal index satisfying
\texttt{minVal} * \texttt{logStep} ^n < \texttt{maxVal}
The grid is logarithmic, so logStep must always be greater than 1. Default value is 1.pub fn new() -> Result<ParamGrid>[src]
Default constructor
pub fn for_range(
_min_val: f64,
_max_val: f64,
_log_step: f64
) -> Result<ParamGrid>[src]
_min_val: f64,
_max_val: f64,
_log_step: f64
) -> Result<ParamGrid>
Constructor with parameters
pub fn create(
min_val: f64,
max_val: f64,
logstep: f64
) -> Result<PtrOfParamGrid>[src]
min_val: f64,
max_val: f64,
logstep: f64
) -> Result<PtrOfParamGrid>
Creates a ParamGrid Ptr that can be given to the %SVM::trainAuto method
Parameters
- minVal: minimum value of the parameter grid
- maxVal: maximum value of the parameter grid
- logstep: Logarithmic step for iterating the statmodel parameter
C++ default parameters
- min_val: 0.
- max_val: 0.
- logstep: 1.
Trait Implementations
Auto Trait Implementations
impl Unpin for ParamGrid
impl !Sync for ParamGrid
impl RefUnwindSafe for ParamGrid
impl UnwindSafe for ParamGrid
Blanket Implementations
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T[src]
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,