Round a numeric vector to the specified number of significant digits; halves will be rounded up.
In base R signif(), halves are rounded to even, e.g.,
signif(11.5, 2) and signif(12.5, 2) are both rounded to 12.
This function rounds 12.5 to 13 (assuming digits = 2). Negative halves
are rounded away from zero, e.g., signif(-2.5, 1) is rounded to -3.
This may skew subsequent statistical analysis of the data, but may be desirable in certain contexts. This function is implemented from https://stackoverflow.com/a/1581007/; see that question and comments for discussion of this issue.
signif_half_up(x, digits = 6)
x |
a numeric vector to round. |
digits |
integer indicating the number of significant digits to be used. |
signif_half_up(12.5, 2) signif_half_up(1.125, 3) signif_half_up(-2.5, 1) # negatives get rounded away from zero
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