On 9/15/06, Satya Upadhya <[EMAIL PROTECTED]> wrote:
Is this what you want to do?
In [2]: a = array([4, 7, 7])
In [3]: diagflat(a)
Out[3]:
array([[4, 0, 0],
[0, 7, 0],
[0, 0, 7]])
Chuck
Dear Friends,
my question is the following:
Suppose i have the following code:
>>> from LinearAlgebra import *
>>> from Numeric import *
>>> A = [1,2,1,3,1,3,4,1,2]
>>> B = reshape(A,(3,3))
>>> C = sum(B,1)
>>> C
array([4, 7, 7])
>>>
Now, my problem is to construct a degree matrix D which is a 3 * 3 matrix with diagonal elements 4,7,7 (obtained from the elements of C) and all off-diagonal elements equal to 0.
Is this what you want to do?
In [2]: a = array([4, 7, 7])
In [3]: diagflat(a)
Out[3]:
array([[4, 0, 0],
[0, 7, 0],
[0, 0, 7]])
Chuck
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