Ah, okay, I didn't remember correctly what arr.tolist did. My mistake.
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Jason Mobarak wrote:
It does what the OPs example does, but with numeric types.
It certainly does not.
In [15]:arr = na.arange(100)
In [16]:random.shuffle(arr)
In [17]:arr.shape = (10,10)
In [18]:arr2 = na.array(arr)
In [19]:L = arr.tolist()
In [20]:L.sort()
In [21]:na.array(L)
Out[21]:
array([[ 8,
It does what the OPs example does, but with numeric types.
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Jason Mobarak wrote:
import numarray as na
import random
# example array
arr = range(100)
random.shuffle(arr)
arr = na.array(arr)
arr = na.reshape(arr, (10,10))
print arr # not rowsort'ed
arr.flat.sort() # key line
print arr # rowsort'ed
That's definitely not a lexicographic sort.
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Robert Kern
[E
import numarray as na
import random
# example array
arr = range(100)
random.shuffle(arr)
arr = na.array(arr)
arr = na.reshape(arr, (10,10))
print arr # not rowsort'ed
arr.flat.sort() # key line
print arr # rowsort'ed
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Suppose arr is a two dimensional numarray array. Suppose we do the
following:
def rowsort(arr):
a = arr.tolist()
a.sort()
return numarray.array(a)
Can this sort be done efficiently in numarray? This function is called
"rowsort" in MatLab.
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