Struct Variable 

pub struct Variable {
    pub name: String,
    pub lower_bound: f64,
    pub upper_bound: f64,
    pub var_type: VariableType,
}

decision variable in optimization problem

Fields

name: String

lower_bound: f64

upper_bound: f64

var_type: VariableType

Implementations

impl Variable

pub fn new_continuous( name: impl Into<String>, lower_bound: f64, upper_bound: f64, ) -> ProblemResult<Self>

creates new continuous var w/ given name & bounds

pub fn new_integer( name: impl Into<String>, lower_bound: f64, upper_bound: f64, ) -> ProblemResult<Self>

Creates a new integer variable with the given name and bounds

pub fn new_binary(name: impl Into<String>) -> Self

Creates a new binary variable with the given name

pub fn new_non_negative(name: impl Into<String>) -> Self

Creates a new non-negative continuous variable

pub fn new_free(name: impl Into<String>) -> Self

Creates a new free (unbounded) continuous variable

pub fn is_lower_bounded(&self) -> bool

Checks if the variable is bounded from below

pub fn is_upper_bounded(&self) -> bool

Checks if the variable is bounded from above

pub fn is_bounded(&self) -> bool

Checks if the variable is bounded (both lower and upper bounds are finite)

pub fn is_free(&self) -> bool

Checks if the variable is free (unbounded in both directions)

pub fn is_feasible(&self, value: f64) -> bool

Checks if a value is feasible for this variable

pub fn project(&self, value: f64) -> f64

Projects a value onto the feasible region of this variable

Trait Implementations

impl Clone for Variable

fn clone(&self) -> Variable

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Variable

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Variable

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Variable

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

Formats the value using the given formatter.

impl PartialEq for Variable

fn eq(&self, other: &Variable) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Variable

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Variable