def where(condition, x=None, y=None):
'''Return items from x or y depending on condition'''
if x and y:
return _dsutils.select(condition, x, y)
elif not x and not y:
return _cmps.nonZero(condition)
else:
raise ValueError, "Both x and y must be specified"
def where(condition, x=None, y=None):
'''Return items from x or y depending on condition'''
if x and y:
return _dsutils.select(condition, x, y)
elif not x and not y:
return _cmps.nonZero(condition)
else:
raise ValueError, "Both x and y must be specified"
def nonzero(a):
'''Return the indices for items that are non-zero'''
return _cmps.nonZero(a)
def nonzero(a):
'''Return the indices for items that are non-zero'''
return _cmps.nonZero(a)
