// This function is used to measure spikes, i.e. the number of times the 
// voltage is above a predefined threshold
// written by Terrence Brannon, last modified by Yiota Poirazi, July 2001, poirazi@LNC.usc.edu

objref spikecount_vec, spikecount_hold
func spikecount() { 

   spikecount_vec=new Vector()
   spikecount_vec.spikebin($o1,$2)

   return(spikecount_vec.sum())
  
}