Updated: 16-Mar-2012 14:32 | ||||||
TimeSignal2ClassCompareGraph Display Plug-In |
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This display plug-in shows the signals from one analog input channel in time domain, ie. x-axis is time and y-axis is amplitude. It can show two traces for comparison:
Alternatively it can show one trace, the amplitude difference between the above mentioned signals (displayed in red). The data set represented here consists of 100 sweeps, divided into 4x5=20 classes. In this example display mode is Raw Sweep (specified via the Display mode control in the main display window). Hence the blue trace represents the raw signal of the present sweep. The Class control is greyed out (disabled) as the class is the same as that of the present sweep. As the Ref control is set to -1.-1 the green trace represents the class average of the present sweeps class. What you see in the above graph is the raw signal (blue) of the "Sine"-channel compared to the class average of all included sweeps in the same class (green), same channel. You can set scaling mode: Right-click the graph and select in the pop-up menu. Another way to compare the same two signals is to display the clculated difference between them: Y-scaling has been set manually to match the above for illustrative purposes only. In the next example display mode has been set to PreProcessed Sweep. The blue trace now represents the pre-processed signal of the "Sine"-channel in the present sweep (Class control still disabled; present class is 2.0). Also the reference class has been changed as the Ref control is set to 2.2 ie. the green trace will show the class average of class 2.2, whichever class the present sweep belongs to. One example of use is if you have one class without stimulation (the reference class) and want to compare other classes to that as you go. If display mode is set to Average (or RMS), the Class control will be enabled and you can choose which class to compare to the reference. You can use -1 to select the present class (example above), or choose a fixed class (example right). You can also combine a fixed class to compare to the present sweeps class average as reference. Beware if the selected class and reference turns out to be the same while display mode is Average (or RMS) then you will only see one trace! In the example right the present sweep belongs to class 3.3, which is also the fixed reference class. Hence the two traces are identical and only the blue is visible. If Difference was applied here a straight, horizontal line at zero amplitude would be shown. |
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