Multichannel Systems MC_Rack Manual - Manual (Page 117)

MC_Rack Features
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4.7 Data Display (for Monitoring Raw Data)
4.7.1 Plot Types
Click to add a Data Display to your rack. You can choose between different plot types,
depending on the data stream type. When displaying Raw Data, only the Trace plot is available.
 Trace plot: The voltage traces are plotted.
 Overlay: Spike cutouts are overlaid.
 Raster plot: The detection events of spikes are plotted. Use this plot type to make spike patterns
visible, for example in relation to a stimulus.
4.7.2 Trace Plot
 The voltage traces are plotted. This plot type is generally used to view Electrode Raw Data,
Analog Raw Data, or mixed data streams.
ASCII Export
The created file has the following structure.
 The first column is the x-axis (time).
 The following column is the y-axis (voltage).
 The first row contains the column headers.
 The second row are the measuring units.
 The following rows contain the data.
 The following screen shot shows such a file opened with a standard spreadsheet.
4.7.3 Overlay Plot
 For plotting spikes. Spike cutouts are plotted over each other, aligned to the detection event.
You can set the number of spike cutouts to be overlaid (up to 1000). The overlay plot is useful to
compare waveforms. It can be used to estimate the variability of signals or to detect multi-unit
activity.