def cond(a, order=None):
"""Condition number
x -- input array
ord -- None = 2-norm computed directly using SVD
'fro' = Frobenius norm
inf = max(sum(abs(x),axis=1))
-inf = min(sum(abs(x),axis=1))
0 = n/a | sum(x != 0)
1 = max(sum(abs(x),axis=0))
-1 = min(sum(abs(x),axis=0))
2 = 2-norm (largest s.v.)
-2 = smallest singular value
other = n/a
Return norm
"""
if order is None:
try:
return _linalg.calcConditionNumber(_jinput(a))
except Exception, e:
raise LinAlgError(e)
def cond(a, order=None):
'''Condition number
x -- input array
ord -- None = 2-norm computed directly using SVD
'fro' = Frobenius norm
inf = max(sum(abs(x),axis=1))
-inf = min(sum(abs(x),axis=1))
0 = n/a | sum(x != 0)
1 = max(sum(abs(x),axis=0))
-1 = min(sum(abs(x),axis=0))
2 = 2-norm (largest s.v.)
-2 = smallest singular value
other = n/a
Return norm
'''
if order is None:
try:
return _linalg.calcConditionNumber(_jinput(a))
except Exception, e:
raise LinAlgError(e)
