void ArffData::_cross_check_instance(ArffInstance* inst) {
if(inst == NULL) {
THROW("ArffData: input instance pointer is null!");
}
if(inst->size() != m_num_attrs) {
THROW("%s: instance size and num-attrs mismatch inst=%d attrs=%d",
"ArffData", inst->size(), m_num_attrs);
}
for(int32 i=0;i<m_num_attrs;++i) {
ArffValue* val = inst->get(i);
ArffAttr* attr = m_attrs[i];
ArffValueEnum valType = val->type();
ArffValueEnum attType = attr->type();
bool a_is_num = (attr->type() == NUMERIC);
bool a_is_nom = (attr->type() == NOMINAL);
bool v_nan = ((valType != INTEGER) && (valType != FLOAT) &&
(valType != NUMERIC));
bool v_nas = (valType != STRING);
// bad numeric/nominal
if((a_is_num && v_nan) || (a_is_nom && v_nas)) {
THROW("%s: attr-name=%s attr-type=%s, but inst-type=%s!",
"ArffData", attr->name().c_str(),
arff_value2str(attType).c_str(),
arff_value2str(valType).c_str());
}
// bad nominal value
if(a_is_nom) {
ArffNominal nom = get_nominal(attr->name());
ArffNominal::iterator itr;
std::string str = (std::string)*val;
for(itr=nom.begin();itr!=nom.end();++itr) {
if(str == *itr) {
break;
}
}
if(itr == nom.end()) {
THROW("%s: attr:(name=%s type=%s) inst-val=%s not found!",
"ArffData", attr->name().c_str(),
arff_value2str(attType).c_str(), str.c_str());
}
}
if(a_is_num || a_is_nom) {
continue;
}
// data mismatch
if(attType != valType) {
THROW("%s: attr-name=%s attr-type=%s, but inst-type=%s!",
"ArffData", attr->name().c_str(),
arff_value2str(attType).c_str(),
arff_value2str(valType).c_str());
}
///@todo: Check for date-format mismatch
}
}
int arff_main(int argc, char *argv[])
{
//ArffParser parser("./data/file_format/case1.arff"); // error occurred because of incorrect file format.
//ArffParser parser("./data/file_format/case2.arff"); // error occurred because of incorrect file format.
//ArffParser parser("./data/file_format/case3.arff");
ArffParser parser("./data/file_format/case4.arff");
ArffData *data = parser.parse();
// relation => @RELATION.
const std::string relationName = data->get_relation_name();
std::cout << "relation name = " << relationName << std::endl;
// attributes => @ATTRIBUTE.
{
const int32 numAttr = data->num_attributes();
std::cout << "the number of attributes = " << numAttr << std::endl;
for (int32 i = 0; i < numAttr; ++i)
{
const ArffAttr *attr = data->get_attr(i);
const std::string name = attr->name();
const ArffValueEnum type = attr->type();
std::cout << "\tattribute #" << i << " : name = " << name << ", type = " << arff_value2str(type) << std::endl;
if (NOMINAL == type)
{
const ArffNominal nominal = data->get_nominal(name);
std::cout << "\t\t";
for (ArffNominal::const_iterator cit = nominal.begin(); cit != nominal.end(); ++cit)
std::cout << *cit << ", ";
std::cout << std::endl;
}
}
}
// instance => @DATA.
{
const int32 numInst = data->num_instances();
std::cout << "the number of instances = " << numInst << std::endl;
for (int32 i = 0; i < numInst; ++i)
{
const ArffInstance *inst = data->get_instance(i);
std::cout << '\t';
for (int32 k = 0; k < inst->size(); ++k)
{
const ArffValue *value = inst->get(k);
if (value->missing())
std::cout << '?';
else
{
switch (value->type())
{
case INTEGER:
std::cout << int32(*value);
break;
case FLOAT:
std::cout << float(*value);
break;
case DATE:
std::cout << std::string(*value); // FIXME [check] >> is it right?
break;
case STRING:
std::cout << std::string(*value);
break;
case NUMERIC:
std::cout << std::string(*value); // FIXME [check] >> is it right?
break;
case NOMINAL:
std::cout << std::string(*value); // FIXME [check] >> is it right?
break;
case UNKNOWN_VAL:
default:
std::cout << '#';
break;
}
}
std::cout << ',';
}
std::cout << std::endl;
}
}
//delete data;
return 0;
}