150    WM-OM-E Rev I 
hist top  Histogram Top 
Definition: 
The value of the rightmost of the two most populated peaks in a histogram. This 
parameter is useful for waveforms with two primary parameter values, such as 
TTL voltages, where htop would indicate the binary `1' voltage value.  
Description: 
The two highest histogram peaks are determined. The rightmost of the two 
identified peaks is then selected. The center of that peak is htop (center is the 
horizontal point where the population to the left is equal to the area to the right). 
Example: