what does clustering measure what is the average duration for an intertrade how long is inter trade duration for trading how to measure a stock cluster in time duration how to measure intertrade duration between trades what is the duration between trades how long is a trading intertrade how to measure clustering in a trading trade how to measure clustering how to tell if the trading is clustered how do you measure clustering in time duration how to measure time duration what is time duration in a stock trade how to measure clustering in the duration which measure is best to measure time duration between trades what is the intertrade duration how to measure a time cluster in the stock market how to measure clustering in time duration clustering inter trade duration how to measure the duration between trades