Source Code for Package boxmin

 1  # This program is in the public domain. 
 2   
 3  """ 
 4  Box constrained minimization functions. 
 5   
 6  Contains amoeba. 
 7   
 8  Fit functions may be implemented in python or in C. 
 9   
10  Installation 
11  ~~~~~~~~~~~~ 
12   
13  You can download the latest version from svn: 
14   
15  svn co svn://danse.us/boxmin/trunk 
16   
17  If you are installing from source, you will need a python 
18  environment with numpy. 
19  You will need a C compiler to build  c lib. 
20  On Windows this may require installing MinGW and 
21  adding distutils.cfg to your distutils directory:: 
22   
23      [build] 
24      compiler = mingw 
25   
26  Once you have the required supporting packages, use the following 
27  to build and install:: 
28   
29      python setup.py install 
30   
31   
32  Usage 
33  ~~~~~ 
34   
35  Example using python function: 
36   
37  >>> from boxmin import amoeba 
38  >>> def quadratic(vec): 
39  >>>    return vec[0]**2+vec[1]**2+1 
40  >>> F = amoeba.amoeba(quadratic,[1,1]) 
41  >>> p = F.fit(1e-7) 
42   
43  p should now contain the vector [x_0, x_1, f(x_0,x_1)] = [0, 0, 1] 
44   
45  See cfitfn_example in boxmin/python/tests for an example of how to 
46  define a C function which is directly callable from the fit. 
47  """ 
48   
49  __docformat__ = 'restructuredtext en' 
50