The definition for latency is simple: Latency = delay. Itâs the amount of delay (or time) it takes to send information from one point to the next. Latency is usually measured in milliseconds or ms. Itâs also referred to (during speed tests) as a ping rate.
VLOOKUP is a powerful Excel function that allows you to look for a specified value in one column of data inside a table, and then fetch a value from another column in the same row.
Letâs take a straightforward look at how the HLOOKUP and VLOOKUP functions are written (this graphic shows an HLOOKUP function but the syntax for VLOOKUP is identical). The four comma-separated parameters you can specify for the HLOOKUP and VLOOKUP functions are: 1  Lookup Value: the cell containing the value youâre searching for in your data table. 2  Table Array: Excel looks for a match to your Lookup Value within this range of cells.