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Appendix A: Interactive Graph
Heloise edited this page Mar 21, 2017
·
1 revision
The FUSS.interactive_graph
sub-module allows for selection of data or data ranges by interaction with plots. It is used by the FUSS.isp_emission
sub-module.
It is used to store 2D data and contains a method to find the centre of the range and it's average value.
Initialisation: DataRange(name, xdata, ydata, *args)
Parameters
- xadata (1D Array) : Values of x
- ydata (1D Array) : Values of y
- ydata_err (optional, 1D Array) : Error values for y. If none are provided, default is None.
- x
- y
- yr: Δy
- start:
min(x)
- end:
max(x)
Defines 2 new attributes:
- middle: The median of x
- avg: The average of y over x. If yr is not None, then the weighted average will be calculated.
Parameters
- self
Returns
- None
Used to interactively define ranges from a graph and retrieve the data within those ranges. Makes uses the class DataRange
and the function onclick()
. The latter is defined in FUSS.interactive_graph
but not described in detail here because it is no use on its own.
Parameter
- fig (matplotlib.figure.Figure): A matplotlib figure.
- flux (2-3D Array): Contains flux information, flux[0] = wavelength, flux[1] = flux values. If err=True, flux[2] = error on flux[1]. Could be any 2-3 D data set.
- err (optional, boolean): Set to True if errors are given.
Returns
- Array of
DataRange
instances.
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