Coherence analysis – Multichannel Systems NeuroExplorer User Manual
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2.32. Coherence Analysis
Coherence is a measure of the degree of relationship, as a function of frequency, between two time
series.
Parameters
Parameter
Description
Reference
Specifies a reference variable.
Max. Freq.
Frequency maximum (Hz).
Number of Fr. Values
Number of frequency values.
Window Overlap
Percent of window overlaps when calculating FFTs.
Show Freq. From
An option to show a subset of frequencies. Specifies minimum frequency
to be displayed.
Show Freq. To
An option to show a subset of frequencies. Specifies maximum frequency
to be displayed.
Calculate
Specifies whether coherence values or coherence phases are calculated.
Confidence Level (%)
Confidence level (percent) for the coherence values. See Confidence
Level Calculation below for details.
Draw confidence level
An option to draw the confidence level. Conficence level is not drawn if
coherence phases are specified in Calculate parameter.
Conf. line style
Line style for drawing confidence level.
Select Data
If Select Data is From Time Range, only the data from the specified (by
Select Data From and Select Data To parameters) time range will be used
in analysis. See also
.
Select Data From
Start of the time range in seconds.
Select Data To
End of the time range in seconds.
Interval filter
Specifies the interval filter that will be used to preselect data before
analysis. See also
Add to Results / Bin left An option to add an additional vector (containing a left edge of each
frequency bin) to the matrix of numerical results.
Add to Results / Bin
middle
An option to add an additional vector (containing a center of each
frequency bin) to the matrix of numerical results.
Add to Results / Bin
right
An option to add an additional vector (containing a right edge of each
frequency bin) to the matrix of numerical results.
Send to Matlab
An option to send the matrix of numerical results to Matlab. See also
.
Matrix Name
Specifies the name of the results matrix in Matlab workspace.
Matlab command
Specifies a Matlab command that is executed after the numerical results
are sent to Matlab.
Send to Excel
An option to send numerical results or summary of numerical results to
Excel. See also
Sheet Name
The name of the worksheet in Excel where to copy the numerical results.
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