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data.cpp
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data.cpp
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#include "data.hpp"
#include <cmath>
#include <fstream>
#include <sstream>
#include "trail_parser.hpp"
static std::ifstream open_file(const std::string& filepath);
static stree::gp::Config _make_default_config();
static void prepare_config(stree::gp::Config& config);
static void config_percent_to_num(
stree::gp::Config& config,
const char* percent_name,
const char* num_name,
const char* whole_num_name);
ConfigError::ConfigError(const std::string& what)
: std::invalid_argument(
std::string("Config error: ") + what) {}
stree::gp::Config make_default_config() {
auto config = _make_default_config();
prepare_config(config);
return config;
}
stree::gp::Config load_config(const std::string& filename) {
auto file = open_file(filename);
auto config = make_default_config();
config.read(file);
prepare_config(config);
return config;
}
Trail load_trail(const std::string& filename) {
auto file = open_file(filename);
TrailParser parser;
parser.parse(file);
if (!parser.is_done())
throw TrailParserException(parser);
return parser.result();
}
stree::Tree load_tree(stree::Environment& env, const std::string& filename) {
auto file = open_file(filename);
stree::Parser parser(&env);
parser.parse(file);
if (!parser.is_done())
throw stree::ParserError(parser);
return stree::Tree(&env, parser.move_result());
}
std::ifstream open_file(const std::string& filepath) {
std::ifstream file(filepath);
if (!file)
throw std::invalid_argument("File not found");
return file;
}
static stree::gp::Config _make_default_config() {
auto config = stree::gp::make_default_config();
config.set_order_step(1);
config.set_order(50);
config.set<unsigned>(conf::ShowNodeStats, 0);
config.set<unsigned>(conf::PrngSeed, 1);
config.set<unsigned>(conf::GenerationMax, 20);
config.set<float>(conf::FitnessGoal, 0.0);
config.set<unsigned>(conf::ResultNum, 10);
config.set<unsigned>(conf::StepLimit, 600);
config.set_order(250);
config.set<unsigned>(conf::MutationNum, 0);
config.set<unsigned>(conf::MutationSubtreeNum, 0);
config.set<unsigned>(conf::MutationPointNum, 0);
config.set<unsigned>(conf::MutationHoistNum, 0);
config.set<float>(conf::MutationPercent, 10.0);
config.set<float>(conf::MutationSubtreePercent, 100.0);
config.set<float>(conf::MutationPointPercent, 0.0);
config.set<float>(conf::MutationHoistPercent, 0.0);
config.set_order(350);
config.set<unsigned>(conf::CrossoverNum, 0);
config.set<float>(conf::CrossoverPercent, 80.0);
config.set_order(400);
config.set<float>(conf::ReproductionPercent, 0.0);
config.set<unsigned>(conf::ReproductionNum, 0);
return config;
}
static void prepare_config(stree::gp::Config& config) {
if (config.get<unsigned>(conf::GenerationMax) == 0)
throw ConfigError("GenerationMax is zero");
if (config.get<float>(conf::FitnessGoal) < 0.0)
throw ConfigError("FitnessGoal is < 0");
if (config.get<unsigned>(conf::StepLimit) == 0)
throw ConfigError("StepLimit is zero");
if (config.get<unsigned>(conf::ResultNum) == 0)
throw ConfigError("ResultNum is zero");
config_percent_to_num(
config,
conf::CrossoverPercent, conf::CrossoverNum,
stree::gp::conf::PopulationSize);
config_percent_to_num(
config,
conf::MutationPercent, conf::MutationNum,
stree::gp::conf::PopulationSize);
config_percent_to_num(
config,
conf::ReproductionPercent, conf::ReproductionNum,
stree::gp::conf::PopulationSize);
{
// Check crossover/mutation/reproduction numbers
unsigned p = config.get<unsigned>(stree::gp::conf::PopulationSize);
unsigned c = config.get<unsigned>(conf::CrossoverNum);
unsigned m = config.get<unsigned>(conf::MutationNum);
unsigned r = config.get<unsigned>(conf::ReproductionNum);
if (c + m + r > p)
throw ConfigError(
"CrossoverNum + MutationNum + ReproductionNum "
"> PopulationSize");
if (c + m + r < p) {
if (c > 0 && m > 0 && r <= 0) {
config.set<unsigned>(conf::ReproductionNum, p - c - m);
} else if (m > 0 && r > 0 && c <= 0) {
config.set<unsigned>(conf::CrossoverNum, p - m - r);
} else if (c > 0 && m > 0 && r <= 0) {
config.set<unsigned>(conf::MutationNum, p - r - c);
} else {
throw ConfigError(
"cannot calculate "
"CrossoverNum/MutationNum/ReproductionNum "
"numbers: "
+ std::to_string(c) + "/"
+ std::to_string(m) + "/"
+ std::to_string(r));
}
}
}
config_percent_to_num(
config,
conf::MutationSubtreePercent, conf::MutationSubtreeNum,
conf::MutationNum);
config_percent_to_num(
config,
conf::MutationPointPercent, conf::MutationPointNum,
conf::MutationNum);
config_percent_to_num(
config,
conf::MutationHoistPercent, conf::MutationHoistNum,
conf::MutationNum);
{
// Check mutation numbers
unsigned m = config.get<unsigned>(conf::MutationNum);
unsigned ms = config.get<unsigned>(conf::MutationSubtreeNum);
unsigned mp = config.get<unsigned>(conf::MutationPointNum);
unsigned mh = config.get<unsigned>(conf::MutationHoistNum);
if (ms + mp + mh != m)
throw ConfigError(
"mutation type numbers don't add up to mutation number");
}
}
static void config_percent_to_num(
stree::gp::Config& config,
const char* percent_name,
const char* num_name,
const char* whole_num_name)
{
float percent = config.get<float>(percent_name);
// Validate percent value
if (percent > 100) {
throw std::invalid_argument(
std::string("`") + percent_name + "' is > 100.0");
}
if (percent > 0.0) {
// Check if num_name is already set
if (config.get<unsigned>(num_name) > 0)
throw ConfigError(
std::string("both `")
+ percent_name + "' and `"
+ num_name + "' are > 0");
// Calc. integer value
unsigned whole = config.get<unsigned>(whole_num_name);
unsigned value = static_cast<unsigned>(std::round(whole * percent / 100));
assert(value <= whole);
config.set<unsigned>(num_name, value);
}
}