merge sort arg document better#4427

Merged

mattdowle merged 13 commits intomasterfrom

Aug 2, 2021

Commits on May 4, 2020

merge sort arg document better
jangorecki
committed

Commits on Aug 2, 2021

Merge branch 'master' into merge-order
mattdowle
committed
row order is specified when sort=FALSE
mattdowle
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remove 'NAs are placed in front' because there are unlikely to be any NAs in key columns, and in this context of missings in merge, that sentence was more likely to mislead towards putting missings…
mattdowle
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retaining order of missings specified too, and backticks to code{}
mattdowle
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removed 'extra' and 'added' from all.x item to avoid being interpretted as 'added at the end'
mattdowle
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remove 'new feature' as old now
mattdowle
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link to setkey, add colon before itemized list at the top
mattdowle
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remove paragraph about dup names in R 3.4.3: seems it was fixed in R 3.5.0. And the nabble link doesn't seem to be working either, so removing the paragraph solves that too.
mattdowle
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'row order is specified' added to the description since the 'except' only mentioned choosing merge columns
mattdowle
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add why NAs first to ?setkey, #2594
mattdowle
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added news note
mattdowle
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add parens to leave no doubt what the 'to reduce' refers to
mattdowle
committed