# What the 'N' means on the following N-gram approximation

What the 'N'(capital) means in the following N-gram approximation to the conditional probability of the next word in a sequence ?

• Put the formula in context. Without that it is hard to discern what any of the symbols mean. – Michael R. Chernick May 29 '18 at 18:31

$N$ in the equation corresponds to the N in N-gram. E.g. if you use bi-grams, $N=2$.