12 lines
733 B
Text
12 lines
733 B
Text
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Package 'bit64' provides serializable S3 atomic 64bit (signed)
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integers. These are useful for handling database keys and exact
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counting in +-2^63. WARNING: do not use them as replacement for 32bit
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integers, integer64 are not supported for subscripting by R-core and
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they have different semantics when combined with double,
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e.g. integer64 + double => integer64. Class integer64 can be used in
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vectors, matrices, arrays and data.frames. Methods are available for
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coercion from and to logicals, integers, doubles, characters and
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factors as well as many elementwise and summary functions. Many fast
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algorithmic operations such as 'match' and 'order' support interactive
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data exploration and manipulation and optionally leverage caching.
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