Matlab equivalent to Java bigdecimal rounding of Half_up?
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Is there a Matlab function that mimics the Half_up rounding in Java bigdecimal? Specifically, when the decimal portion is exactly .5, round is towards positive infinity. Example: 3.5 rounds to 4 and -3.5 rounds to -3. I didn't see anything like this in the help for round().
Accepted Answer
In release R2022a we added the argument TieBreaker (which can be used case insensitively) to control how ties are broken in round. Are you using an older release?
x = [3.5, -3.5];
round(x, Tiebreaker = "plusinf")
round(x, Tiebreaker = "tozero")
round(x, Tiebreaker = "fromzero") % default
You can use this with the N input argument too.
round(1.25, 1) % Remember "fromzero" is the default
round(1.25, 1, Tiebreaker = "tozero")
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