Class covar_funct_strings (o2scl)

O2scl : Class List

class covar_funct_strings : public o2scl::covar_funct

Covariance function: 1D from strings.

Public Functions

inline covar_funct_strings()

template<class vec_string_t = std::vector<std::string>>
inline covar_funct_strings(std::string expr, std::string expr_d, std::string expr_d2, std::string expr_i, vec_string_t &parms, std::string var, std::string var2, std::string var_lo, std::string var_hi)

Set the covariance function from strings.

template<class vec_string_t = std::vector<std::string>>
inline void set(std::string expr, std::string expr_d, std::string expr_d2, std::string expr_i, vec_string_t &parms, std::string var, std::string var2, std::string var_lo, std::string var_hi)

Set the covariance function from strings.

inline virtual size_t get_n_params()

Get the number of parameters.

template<class vec_t>
inline void set_params(vec_t &v)

To evaluate the fit quality.

inline virtual double operator()(double x, double y)

The covariance function.

inline virtual double deriv(double x, double y)

The derivative of the covariance function with respect to x.

inline virtual double deriv2(double x, double y)

The second derivative of the covariance function with respect to x.

inline virtual double integ(double x, double a, double b)

The integral of the covariance function at x between a and b.

Public Members

o2scl::calc_utf8 calc

The expression evaluation objects.

o2scl::calc_utf8 calc_d

o2scl::calc_utf8 calc_d2

o2scl::calc_utf8 calc_i

std::map<std::string, double> vars

The variable values.

std::string st_expr

The expressions to evaluate, stored as strings.

std::string st_expr_d

std::string st_expr_d2

std::string st_expr_i

std::vector<std::string> st_parms

The parameters.

std::string st_var

The variable.

std::string st_var2

The second variable.

std::string st_var_lo

The lower limit variable.

std::string st_var_hi

The upper limit variable.