fisherQ

fisherQ

A function that can be used in Formulas.

fisherQ (f, df1, df2): compute the area under Fisher’s F-distribution from f to +∞, for df1 numerator degrees of freedom and df2 denominator degrees of freedom.

(1) fisherQ is the inverse of invFisherQ, i.e.

fisherQ (invFisherQ (q, df₁, df₂), df₁, df₂) = q

and

invFisherQ (fisherQ (f, df₁, df₂), df₁, df₂) = f

(2) fisherQ is the complement of fisherP, i.e.

fisherQ (f, df1, df2) = 1 − fisherP (f, df1, df2)

and

fisherP (f, df1, df2) = 1 − fisherQ (f, df1, df2)