computehrv

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 computehrv [2010/06/21 23:02]jochen created computehrv [2010/06/22 23:20] (current)jochen changed heartbeats text to link 2010/06/22 23:20 jochen changed heartbeats text to link2010/06/22 00:16 jochen again...2010/06/22 00:16 jochen typos...2010/06/21 23:37 jochen added screenshot of heartbeats of example2010/06/21 23:02 jochen created Next revision Previous revision 2010/06/22 23:20 jochen changed heartbeats text to link2010/06/22 00:16 jochen again...2010/06/22 00:16 jochen typos...2010/06/21 23:37 jochen added screenshot of heartbeats of example2010/06/21 23:02 jochen created Line 2: Line 2: ===== Motivation ===== ===== Motivation ===== - Both heart beat onsets (R wave time points) as well as sliding beats-per-minute, (BPM) are already interesting measures, ​both most publications refer to summarizes ​measures when GCR data reported. One of the most common of these is heart-rate variability (HRV). This function computes the power spectral contribution of frequencies in two specified ranges. + Both heart beat onsets (R wave time points) as well as sliding beats-per-minute (BPM) are already interesting measures, ​but most publications refer to summary ​measures when GCR data reported. One of the most common of these is heart-rate variability (HRV). This function computes the power spectral contribution of frequencies in two specified ranges. ===== Requirements ===== ===== Requirements ===== Line 175: Line 175: % compute relative power contribution HFP/LFP % compute relative power contribution HFP/LFP rel_pow_HoverL = hrv.hfp / hrv.lfp;​ rel_pow_HoverL = hrv.hfp / hrv.lfp;​ + + The following screenshot was taken during this example (while the second call to [[heartbeats]] is being executed): + + {{:​neuroelf_heartbeats_doublewindow.png|heartbeats with overview on top}} + + **Note: if the function (heartbeats) is called twice with plotting enabled, the result of the overview of the first call will be re-positioned so that it can be easily used as input to the second pass.**