Help Please - RFI

hi hi
i read in mr. laplante's lesson that rfi (raise first in) is a vital statistic, arguably they very most important one
i placed the rfi statistic onto my hud
i have trouble understand this statistic, its difference from pfr (pre-flop raise)
also how i interpret the rfi numbers?
please if you could explain this for me
thank you

Numbers are numbers... it is a quantitative measurement... (quantity)
"Frequency of first raise" is the stat that is question here... it could be pre-flop or post flop... but
The answer to "how often?" can also be stated in terms of qualitative measurement (descriptive), and the frequency would be described as "often" or "seldom".
To apply this to your play, you may notice someone does it often, or seldom... and figure out what your next move is...
the first to raise, could be doing so for any number of reasons...
bluff, strong hand, upsetting the people, forcing an action, preventing an action, being dumb, or a misclick.:captain: