with_edition | R Documentation |
with_edition()
allows you to change the active edition of readr for a given
block of code. local_edition()
allows you to change the active edition of
readr until the end of the current function or file.
with_edition(edition, code) local_edition(edition, env = parent.frame())
edition |
Should be a single integer, such as |
code |
Code to run with the changed edition. |
env |
Environment that controls scope of changes. For expert use only. |
with_edition(1, edition_get()) with_edition(2, edition_get()) # readr 1e and 2e behave differently when input rows have different number # number of fields with_edition(1, read_csv("1,2\n3,4,5", col_names = c("X", "Y", "Z"))) with_edition(2, read_csv("1,2\n3,4,5", col_names = c("X", "Y", "Z"))) # local_edition() applies in a specific scope, for example, inside a function read_csv_1e <- function(...) { local_edition(1) read_csv(...) } read_csv("1,2\n3,4,5", col_names = c("X", "Y", "Z")) # 2e behaviour read_csv_1e("1,2\n3,4,5", col_names = c("X", "Y", "Z")) # 1e behaviour read_csv("1,2\n3,4,5", col_names = c("X", "Y", "Z")) # 2e behaviour
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