Hello R Fans,
Another question for the community that really frightened me today.
The following logical comparison produces a "false" as output:
t = sum((c(.7,.69,.68,.67,.66)-.5)*c(1,1,-1,-1,1))
tt = sum((c(.7,.69,.68,.67,.66)-.5)*c(1,-1,1,1,-1))
t == tt
This is really strange behavior. Most likely this has something to do
how R represents numbers internally and the possible sensitivity of a
computer? Does anyone know when this strange behavior occurs and how
to fix it?
Thank you all! This list is pleasure!!!
Marc