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st: Error computing eigenvalues using mata
From
Zachary Neal <[email protected]>
To
[email protected]
Subject
st: Error computing eigenvalues using mata
Date
Mon, 13 Apr 2009 06:18:27 -0700 (PDT)
I am trying to compute the eigenvalues for a 59 x 59 square, symmetric, binary matrix. The command <mata eigenvalues(x)> returns the following error:
_eigenvalues(): 3252 evals[59,1] found where complex required
eigenvalues(): - function returned error
<istmt>: - function returned error
Any assistance would be appreciated. I've pasted the problem matrix below, but it is a bit hard to read.
Thank you
Zachary
===========
mata x
[symmetric]
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
+---------------------------------------------------------------------------------
1 | 0
2 | 0 0
3 | 0 0 0
4 | 0 0 0 0
5 | 0 0 0 0 0
6 | 0 0 0 0 0 0
7 | 0 0 0 0 0 0 0
8 | 0 0 0 0 0 0 0 0
9 | 0 0 0 0 0 0 0 0 0
10 | 0 0 0 0 0 0 0 0 0 0
11 | 0 0 0 0 0 0 0 0 0 0 0
12 | 0 0 0 0 0 0 0 0 0 0 0 0
13 | 0 0 0 0 0 0 0 0 0 0 0 0 0
14 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0
15 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
16 | 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0
17 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
18 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
19 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
20 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
21 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
22 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
23 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
24 | 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0
25 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
26 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
27 | 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0
28 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
29 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
30 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
31 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
32 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
33 | 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0
34 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
35 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
36 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
37 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
38 | 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0
39 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
40 | 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0
41 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
42 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
43 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
44 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
45 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
46 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
47 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
48 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
49 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
50 | 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0
51 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
52 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
53 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
54 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
55 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
56 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
57 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
58 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
59 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
+---------------------------------------------------------------------------------
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
---------------------------------------------------------------------------------
17 0
18 0 0
19 0 0 0
20 0 0 0 0
21 0 0 0 0 0
22 0 0 0 0 0 0
23 0 0 0 0 0 0 0
24 0 0 0 0 0 0 0 0
25 0 0 0 0 0 0 0 0 0
26 0 0 0 0 0 0 0 0 0 0
27 0 0 0 0 0 0 0 0 0 0 0
28 0 0 0 0 0 0 0 0 0 0 0 0
29 0 0 0 0 0 0 0 0 0 0 0 0 0
30 0 0 0 0 0 0 0 0 0 0 0 0 0 0
31 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
32 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
33 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
34 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
35 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
36 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
37 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
38 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
39 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
41 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
42 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
43 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
44 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
45 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
46 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
47 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
48 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
49 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
51 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
52 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0
53 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
54 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
55 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
56 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
57 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
58 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
59 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
---------------------------------------------------------------------------------
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
---------------------------------------------------------------------------------
33 0
34 0 0
35 0 0 0
36 0 0 0 0
37 0 0 0 0 0
38 0 0 0 0 0 0
39 0 0 0 0 0 0 0
40 0 0 0 0 0 0 0 0
41 0 0 0 0 0 0 0 0 0
42 0 0 0 0 0 0 0 0 0 0
43 0 0 0 0 0 0 0 0 0 0 0
44 0 0 0 0 0 0 0 0 0 0 0 0
45 0 0 0 0 0 0 0 0 0 0 0 0 0
46 0 0 0 0 0 0 0 0 0 0 0 0 0 0
47 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
48 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
49 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0
50 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0
51 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
52 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
53 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
54 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
55 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
56 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
57 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
58 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
59 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
---------------------------------------------------------------------------------
49 50 51 52 53 54 55 56 57 58 59
--------------------------------------------------------+
49 0 |
50 0 0 |
51 0 0 0 |
52 0 0 0 0 |
53 0 0 0 0 0 |
54 0 0 0 0 0 0 |
55 0 0 0 0 0 0 0 |
56 0 0 0 0 0 0 0 0 |
57 0 0 0 0 0 0 0 0 0 |
58 0 0 0 0 0 0 0 0 0 0 |
59 0 0 0 0 0 0 0 0 0 0 0 |
--------------------------------------------------------+
-----------------
Zachary Neal, PhD
Managing Editor, City & Community
University of Illinois at Chicago
[email protected]
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