Struct opencv::ml::ParamGrid

pub struct ParamGrid { /* private fields */ }

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.

Implementations

impl ParamGrid

pub fn default() -> Result<ParamGrid>

Default constructor

pub fn for_range( _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<Ptr<ParamGrid>>

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.

pub fn create_def() -> Result<Ptr<ParamGrid>>

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

Note

This alternative version of ParamGrid::create function uses the following default values for its arguments:

• min_val: 0.
• max_val: 0.
• logstep: 1.

Trait Implementations

impl Boxed for ParamGrid

unsafe fn from_raw(ptr: *mut c_void) -> Self

Wrap the specified raw pointer

fn into_raw(self) -> *mut c_void

Return an the underlying raw pointer while consuming this wrapper.

fn as_raw(&self) -> *const c_void

Return the underlying raw pointer.

fn as_raw_mut(&mut self) -> *mut c_void

Return the underlying mutable raw pointer

impl Debug for ParamGrid

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for ParamGrid

fn drop(&mut self)

Executes the destructor for this type.

impl ParamGridTrait for ParamGrid

fn as_raw_mut_ParamGrid(&mut self) -> *mut c_void

fn set_min_val(&mut self, val: f64)

Minimum value of the statmodel parameter. Default value is 0.

fn set_max_val(&mut self, val: f64)

Maximum value of the statmodel parameter. Default value is 0.

fn set_log_step(&mut self, val: f64)

Logarithmic step for iterating the statmodel parameter.

impl ParamGridTraitConst for ParamGrid

fn as_raw_ParamGrid(&self) -> *const c_void

fn min_val(&self) -> f64

Minimum value of the statmodel parameter. Default value is 0.

fn max_val(&self) -> f64

Maximum value of the statmodel parameter. Default value is 0.

fn log_step(&self) -> f64

Logarithmic step for iterating the statmodel parameter.

impl Send for ParamGrid