Change Log for LTPDA Toolbox V0.5
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M Hewitson 01-09-07


Version 0.5 of the toolbox sees mainly work on the following points:

+ all LTPDA objects can be saved/loaded to/from XML files
+ all LTPDA objects can be submitted to/retrieved from an LTPDA repository
+ new time class to centralise the definition of time
	- includes a new class (timeformat) for setting the display format for times
+ new timespan class to define periods of time - useful for functions like split()
+ new functionality for creating AOs from text files of data (>> help ao)
+ new AO methods
	- phase   - computes the phase angle of the data in an AO; result is returned as an AO
	- complex - create a complex AO from two real AOs, one representing the real part, the 
	            other the imaginary part
	- imag    - return the imaginary part of an AO
	- real    - return the real part of an AO

Some work has been done to the ao/plot function to bring it more in-line with the standard use
of plot() in MATLAB; this simple plotting function is currently named simple_plot() for testing
- it will overwrite the current ao/plot in a later version. In addtion, a new command,
ao/iplot, does more intelligent plotting (automatically adds axis labels, legend, etc).