which.min, equal values and fractions
On Tue, 25 Aug 2020 14:26:43 +0200
Mike <mike9 at posteo.nl> wrote:
But which.min only does so if the values don't contain fractions. And I get
identical (data3ba, c(2.9,2.9))
[1] FALSE Why is which.min not always returning 1 but which.max does?
It's the unfortunate consequence of the way floating point numbers work: data3ba - 2.9 # [1] 0.000000e+00 -4.440892e-16 See R FAQ 7.31: https://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-doesn_0027t-R-think-these-numbers-are-equal_003f
Best regards, Ivan