TCostMatrix::TCostMatrix(PVariable acv, const float &inside)
: classVar(acv),
dimension(0),
costs(NULL)
{
TEnumVariable *dcv = classVar.AS(TEnumVariable);
if (!dcv)
raiseError("attribute '%s' is not discrete", classVar->get_name().c_str());
dimension = dcv->noOfValues();
if (!dimension)
raiseError("attribute '%s' has no values", classVar->get_name().c_str());
init(inside);
}
bool convertFromPythonExisting(PyObject *lst, TExample &example)
{
PDomain dom=example.domain;
if (PyOrExample_Check(lst)) {
const TExample &orex = PyExample_AS_ExampleReference(lst);
if (orex.domain != dom)
dom->convert(example, orex);
else
example = orex;
return true;
}
if (!PyList_Check(lst)) {
PyErr_Format(PyExc_TypeError, "invalid argument type (expected list, got '%s)", lst ? lst->ob_type->tp_name : "None");
return false;
}
int const nvars = dom->variables->size() + dom->classVars->size();
if (Py_ssize_t(nvars) != PyList_Size(lst)) {
PyErr_Format(PyExc_IndexError, "invalid list size (got %i, expected %i items)",
PyList_Size(lst), nvars);
return false;
}
Py_ssize_t pos = 0;
TExample::iterator ei(example.begin());
TVarList::iterator vi(dom->variables->begin());
TVarList::const_iterator const ve(dom->variables->end());
TVarList::const_iterator const ce(dom->classVars->end());
while(vi != ce && vi != ve) {
PyObject *li=PyList_GetItem(lst, pos++);
if (!li)
PYERROR(PyExc_SystemError, "can't read the list", false);
if (PyOrValue_Check(li))
if (PyValue_AS_Variable(li) ? (PyValue_AS_Variable(li) != *vi) : (PyValue_AS_Value(li).varType=!(*vi)->varType) ) {
PyErr_Format(PyExc_TypeError, "wrong value type for attribute no. %i (%s)", pos, (*vi)->get_name().c_str());
return false;
}
else
*(ei++)=PyValue_AS_Value(li);
else {
if (li == Py_None) {
*(ei++) = (*vi)->DK();
} else if (PyString_Check(li)) {
(*vi)->str2val(string(PyString_AsString(li)), *(ei++));
} else if ((*vi)->varType==TValue::INTVAR) {
if (PyInt_Check(li)) {
TEnumVariable * enumvar = dynamic_cast<TEnumVariable *>(vi->getUnwrappedPtr());
int value = int(PyInt_AsLong(li));
if (value < 0 || value >= enumvar->noOfValues()) {
PyErr_Format(PyExc_ValueError,
"value index %i out of range (0 - %i) at attribute no %i (%s)",
value, enumvar->noOfValues() - 1, pos, enumvar->get_name().c_str());
return false;
}
*(ei++) = TValue(value);
} else {
PyErr_Format(PyExc_TypeError, "attribute no. %i (%s) is ordinal, string or int value expected", pos, (*vi)->get_name().c_str());
return false;
}
}
else if ((*vi)->varType==TValue::FLOATVAR) {
float f;
if (PyNumber_ToFloat(li, f))
*(ei++) = TValue(f);
else {
PyErr_Format(PyExc_TypeError, "attribute no. %i (%s) is continuous, float value expected", pos, (*vi)->get_name().c_str());
return false;
}
}
else
ei++;
}
if (++vi == ve) {
vi = dom->classVars->begin();
}
}
return true;
}