round2even

Performs round-to-even operation. This operation is more accurate than round-to-larger.

Description

The round2even function performs round to even, which is different from round to larger. The return value is the number closest to the value of expression, with the appropriate number of decimal places. If expression is exactly halfway between two possible rounded values, the function returns the possible rounded value whose rightmost digit is an even number. (In a round to larger function, a number that is halfway between two possible rounded values is always rounded to the larger number.)

Note: Round to even is a statistically more accurate rounding algorithm than round to larger.

Note: Round to even is sometimes called banker's rounding.

• MATLAB release: MATLAB 6.5 (R13)

[Mukhtar Ullah]

Nice work. Also have a look at my file ROUND2 in the file exchange that has an option to round to even by a providing a flag. Moreover it can handle matrices and N-D arrays without any loops.

[Dimitri Shvorob]

No complaints about the code, but it shouldn't be in this category - would the author consider removing and reposting?