def _compare_value(self, other, op):
_rowid = Index(0)
for rowid, val in zip(self._rowid, self._seq):
try:
if op(val, other):
_rowid.append(rowid)
except:
pass
return self._datamatrix._selectrowid(_rowid)
def _compare_sequence(self, other, op):
_rowid = Index(0)
for rowid, val, ref in zip(self._rowid, self._seq,
self._tosequence(other)):
try:
if op(val, ref):
_rowid.append(rowid)
except:
pass
return self._datamatrix._selectrowid(_rowid)
def _compare_type(self, type_, op):
_rowid = Index(0)
if op is operator.eq:
for rowid, val in zip(self._rowid, self._seq):
if isinstance(val, type_):
_rowid.append(rowid)
elif op is operator.ne:
for rowid, val in zip(self._rowid, self._seq):
if not isinstance(val, type_):
_rowid.append(rowid)
else:
raise TypeError('types can only be compared with == or !=')
return self._datamatrix._selectrowid(_rowid)
def _compare_nan(self, other, op):
_rowid = Index(0)
if op is operator.eq:
for rowid, val in zip(self._rowid, self._seq):
if math.isnan(val):
_rowid.append(rowid)
elif op is operator.ne:
for rowid, val in zip(self._rowid, self._seq):
if not math.isnan(val):
_rowid.append(rowid)
else:
raise TypeError('nans can only be compared with == or !=')
return self._datamatrix._selectrowid(_rowid)
def _compare_set(self, other, op):
if op == operator.__eq__:
test = lambda val: any(val == v for v in other)
elif op == operator.__ne__:
test = lambda val: all(val != v for v in other)
else:
raise TypeError('sets can only be compared with == or !=')
_rowid = Index(0)
for rowid, val in zip(self._rowid, self._seq):
try:
if test(val):
_rowid.append(rowid)
except:
pass
return self._datamatrix._selectrowid(_rowid)