CSV 写入选项
用法
csv_write_options(
include_header = TRUE,
batch_size = 1024L,
null_string = "",
delimiter = ",",
eol = "\n",
quoting_style = c("Needed", "AllValid", "None")
)
示例
tf <- tempfile()
on.exit(unlink(tf))
write_csv_arrow(airquality, tf, write_options = csv_write_options(null_string = "-99"))