Re: [R] gmp::bigq vs. MASS::fractions

2023-01-11 Thread Sigbert Klinke
Hello, Am 07.01.23 um 17:55 schrieb Ivan Krylov: > What do you need the fractions for? > When writing tasks for statistics exams, I try to avoid non-terminal intermediate results. Students might round them and arrive at a final result that might be slightly different from the true value. Altho

Re: [R] gmp::bigq vs. MASS::fractions

2023-01-09 Thread Enrico Schumann
On Sat, 07 Jan 2023, Sigbert Klinke writes: > Hi, > > has someone experience which routine should be used for > creating fractional numbers? The two conversion > routines deliver different results > >> x <- (0:7)/7 > >> MASS::fractions(x) > > [1] 0 1/7 2/7 3/7 4/7 5/7 6/7 1 > >> gmp::as.bigq(x

Re: [R] gmp::bigq vs. MASS::fractions

2023-01-07 Thread Ivan Krylov
On Sat, 7 Jan 2023 17:29:35 +0100 Sigbert Klinke wrote: > > x <- (0:7)/7 > > > MASS::fractions(x) > > [1] 0 1/7 2/7 3/7 4/7 5/7 6/7 1 > > > gmp::as.bigq(x) > > Big Rational ('bigq') object of length 8: > > [1] 0 > 2573485501354569/18014398509481984 2573485501354569/900719925474

[R] gmp::bigq vs. MASS::fractions

2023-01-07 Thread Sigbert Klinke
Hi, has someone experience which routine should be used for creating fractional numbers? The two conversion routines deliver different results > x <- (0:7)/7 > MASS::fractions(x) [1] 0 1/7 2/7 3/7 4/7 5/7 6/7 1 > gmp::as.bigq(x) Big Rational ('bigq') object of length 8: [1] 0 2573485