Matlab equivalent to Java bigdecimal rounding of Half_up?

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().

Answer 1

[Steven Lord]

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")

ans = 1x2

4 -3

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round(x, Tiebreaker = "tozero")

ans = 1x2

3 -3

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round(x, Tiebreaker = "fromzero") % default

ans = 1x2

4 -4

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You can use this with the N input argument too.

round(1.25, 1) % Remember "fromzero" is the default

ans = 1.3000

round(1.25, 1, Tiebreaker = "tozero")

ans = 1.2000

[Derek]

Thank you - yes, I am on an R2020b so I guess I need to upgrade if I want this function.