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f_inv

Inverse F-distribution left-tail CDF.

v = f_inv(probability, deg_freedom1, deg_freedom2)

Returns the x such that f_dist(x, df1, df2, true) = probability.

f_inv(0.95, 5, 10) % ≈ 3.326
  • f_dist — F-distribution left-tail PDF or CDF.
  • f_inv_rt — Inverse F-distribution right-tail CDF.