[R-Forge #1492] Iterative RHS of := (and `:=`(...)), and multiple := inside j={...} syntax
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Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 25/100
Research direction
The issue names no source file or test. Start by reproducing the data.table example in R and reviewing the existing := behavior; completion means supporting RHS expressions that use earlier left-hand names and multiple := assignments inside j={...} syntax.
Written by the indexing model from the issue text.
Description
Submitted by: Matt Dowle; Assigned to: Nobody; R-Forge link
e.g. DT[, :=( m1=mean(a), m2=sd(a), s=m1/m2 ), by=group]
where s can use previous lhs names ( using the word 'iterative' tries to convey that ).
- Dominant language
- R
- Stars
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- Avg merge
- 14h 4m
- Merged PRs (30d)
- 4
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