Data.decompose¶
- Data.decompose(xcol=None, ycol=None, sym=None, asym=None, replace=True, **kwords)¶
Given (x,y) data, decomposes the y part into symmetric and antisymmetric contributions in x.
- Keyword Arguments:
xcol (index) – Index of column with x data - defaults to first x column in self.setas
ycol (index or list of indices) – indices of y column(s) data
sym (index) – Index of column to place symmetric data in default, append to end of data
asym (index) – Index of column for asymmetric part of ata. Defaults to appending to end of data
replace (bool) – Overwrite data with output (true)
- Returns:
self – The newly modified
AnalysisMixin
.
Example
"""Decompose Into symmetric and antisymmetric parts example.""" from numpy import linspace, reshape, array from Stoner import Data from Stoner.tools import format_val x = linspace(-10, 10, 201) y = 0.3 * x**3 - 6 * x**2 + 11 * x - 20 d = Data(x, y, setas="xy", column_headers=["X", "Y"]) d.decompose() d.setas = "xyyy" coeffs = d.polyfit(polynomial_order=3) str_coeffs = [format_val(c, mode="eng", places=1) for c in coeffs.ravel()] str_coeffs = reshape(array(str_coeffs), coeffs.shape) d.plot() d.text( -6, -800, "Coefficients\n{}".format(str_coeffs), fontdict={"size": "x-small"}, ) d.ylabel = "Data" d.title = "Decompose Example"