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dft_tools/doc/reference/python/data_analysis/fit/fit.rst
Michel Ferrero f7fad85fca Iteration over the doc
This is an iteration over the doc mainly thank to Priyanka.
I fixed another couple of details on the way.
2013-12-31 14:22:00 +01:00

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.. module:: pytriqs.fit.fit
Fitting data
====================
A simple example
^^^^^^^^^^^^^^^^^^^^^
Let us for example fit the Green function :
.. plot:: reference/python/data_analysis/fit/fit_test.py
:include-source:
:scale: 70
Note that `x_window` appears in the `x_data_view` method to clip the data on a given window
and in the plot function, to clip the plot itself.
..
A more complex example
^^^^^^^^^^^^^^^^^^^^^^^^^^^
To illustrate the use of python in a more complex situation,
let us demonstrate a simple data analysis.
This does not use any TRIQS objects, it is just a little exercise in python.
Imagine that we have 10 Green's function coming from a calculation in a hdf5 file.
For the need of the demonstration, we will create them "manually" here, but it is just to make life easier.
STILL NEEDS TO BE WRITTEN
Reference
^^^^^^^^^^^^^^^
The Fit class is very simple and is provided for convenience, but the reader
is encouraged to have a look through it and adapt it (it is simply a call to
scipy.leastsq).
.. autoclass:: pytriqs.fit.Fit
:members:
Example of fitfunc::
linear = lambda X, a,b : a * X + b, r"$%f x + %f$" , (1,1)
quadratic = lambda X, a,b,c : (a * X + b)*Omega + c, r"$%f x^2 + %f x + %f$" , (0,1,1)