StevenHibble-Concurrence
commented
6 months ago I forgot to add some metrics. I took timing and total memory allocation using bench::mark(). Peak RAM usage is from peakRAM::peakRAM().
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workbook size | metric | paste() | pair_rc() | change -- | -- | -- | -- | -- medium | time (seconds) | 7.2 | 6.4 | -11% medium | mem_alloc (MB) | 399.8 | 355.7 | -11% medium | peak_mem (MB) | 283.7 | 263.3 | -7% large | time (seconds) | 46.4 | 33.1 | -29% large | mem_alloc (MB) | 3696.6 | 3184.6 | -14% large | peak_mem (MB) | 449.5 | 395.2 | -12%
Closes #467.
I considered Szudzik's Elegant Pairing Function, but it quickly exceeds
.Machine$integer.max. Instead, we create a double vector by taking the row position as the whole number and the column position as the decimal number. This assumes that float precision is better than 1e-7 and that the spreadsheet won't have more than 10M-1 columns.