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Spell out "significant figures" in ?setNumericRounding #6081

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Apr 12, 2024
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Spell out "significant figures" in ?setNumericRounding #6081

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4 changes: 2 additions & 2 deletions man/setNumericRounding.Rd
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Original file line number Diff line number Diff line change
Expand Up @@ -18,8 +18,8 @@ Computers cannot represent some floating point numbers (such as 0.6)
precisely, using base 2. This leads to unexpected behaviour when joining or
grouping columns of type 'numeric'; i.e. 'double', see example below. In
cases where this is undesirable, data.table allows rounding such data up to
approximately 11 s.f. which is plenty of digits for many cases. This is
achieved by rounding the last 2 bytes off the significand. Other possible
approximately 11 significant figures which is plenty of digits for many cases.
This is achieved by rounding the last 2 bytes off the significand. Other possible
values are 1 byte rounding, or no rounding (full precision, default).

It is bytes rather than bits because it is tied in with the radix sort
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