partition_mutate_se: Partition a sequence of mutate commands into longest ordered...
In WinVector/seplyr: Improved Standard Evaluation Interfaces for Common Data Manipulation Tasks
partition_mutate_se R Documentation
Partition a sequence of mutate commands into longest ordered no create/use blocks.
Description
We assume the sequence of expressions is in a valid order
(all items available before use). This function partitions the expressions
into ordered longest "no new value used blocks" by greedily scanning forward
remaining expressions in order taking any that: have all their values available from earlier groups,
do not use a value formed in the current group, and do not overwrite a value formed in the current group.
For an example please see https://winvector.github.io/FluidData/partition_mutate.html.
Usage
partition_mutate_se(exprs)
Arguments
exprs
list of source-text of a sequence of mutate expressions.
Value
ordered list of mutate_se assignment blocks
Examples
partition_mutate_se(c("a1" := "1", "b1" := "a1", "a2" := "2", "b2" := "a1 + a2"))
WinVector/seplyr documentation built on Aug. 26, 2022, 12:01 p.m.
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| partition_mutate_se | R Documentation |
Partition a sequence of mutate commands into longest ordered no create/use blocks.
Description
We assume the sequence of expressions is in a valid order (all items available before use). This function partitions the expressions into ordered longest "no new value used blocks" by greedily scanning forward remaining expressions in order taking any that: have all their values available from earlier groups, do not use a value formed in the current group, and do not overwrite a value formed in the current group. For an example please see https://winvector.github.io/FluidData/partition_mutate.html.
Usage
partition_mutate_se(exprs)
Arguments
exprs |
list of source-text of a sequence of mutate expressions. |
Value
ordered list of mutate_se assignment blocks
Examples
partition_mutate_se(c("a1" := "1", "b1" := "a1", "a2" := "2", "b2" := "a1 + a2"))
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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