The if function is pretty straight forward.

it is set up like this,

IF what i want is true , Then say this, if not then say this

for example if I had a column that if it had a value of "Blue" I would want it to say "Go" but if did not say "Blue" I would want it to say "Stop" my formula would look like this

=IF([Column Name]@row = "Blue","Go","Stop")

the first thing in the IF statement is you logical statement or what you want to see if it's true or not. the second thing is what to return if it is true. the last thing is what to return if it is false.

If statements starts around 3:50