Multichannel-systems NeuroExplorer Manual de usuario descargar pdf (Pagina 360)

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6.3. Variable

Variable Interface

NeuroExplorer Application object provides access to the open files and variables contained in the

files. For example, to open a document in NeuroExplorer and get the first event variable in the

document in Matlab, you can use:

nex = actxserver('NeuroExplorer.Application');

doc = nex.OpenDocument('C:\Data\TestDataFile.nex');

event1 = doc.Event(1);

Here Event() method returns a Variable object corresponding to the first event variable in the file.

The properties and methods of the Variable object are listed below.

Properties

Property Description

Name Variable name

TimestampCount Number of timestamps in the variable

Methods

Method Description

Timestamps Returns all the variable timestamps in an array

IntervalStarts For interval variables, returns all the interval start values

IntervalEnds For interval variables, returns all the interval end values

FragmentTimestamps For continuous variables, returns fragment timestamps

FragmentCounts For continuous variables, returns the number of data points in

each fragment

ContinuousValues For continuous variables, returns A/D values in milliVolts

MarkerValues For marker variables, returns marker string values

WaveformValues For waveform variables, returns waveform values

Select Selects the variable for analysis

Deselect Deselects the variable

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