How can I measure coherence between EEG signals using labview?

[Morais]

well, I have an EEG signal(a matrix 16X8498)whose lines represent the channels and collums the samples. The last line is the stimulus channel. I would like to know if I can measure the coherence between my EEG channels(lines)using labview.If,yes,is there someone who has the block diagram?

[Al_S]

Search the Labview help for coherence and you'll find several functions (in Labview 6.1 Full Development System). The functions are in the palette Analyze >> Waveform Measurements >> Frequency Response Function (Mag-Phase) or (Real-Im).