Hmm, I may have written too quickly. I find these lines from R CMD
build --help confusing:
--resave-data= re-save data files as compactly as possible:
"no", "best", "gzip" (default)
--resave-data same as --resave-data=best
The first line suggests that gzip compression is the default. The
second suggests that "best" is the default. And are we supposed to use
quotation marks or not ... ?
In any case, --resave-data=best and --resave-data="best" both seem
worth a try.
On 3/11/21 3:57 PM, Jonathan Callahan wrote:
I am building a package using R 4.0.4 on OS X 10.15.7.
In a terminal I type:
R CMD build --resave-data AirSensor
Then, I check with:
R CMD check --as-cran AirSensor_1.0.8.tar.gz
Everything is fine until I see:
* checking data for ASCII and uncompressed saves ... WARNING
Note: significantly better compression could be obtained
by using R CMD build --resave-data
old_size new_size compress
example_pas.rda 1.6Mb 1.1Mb xz
example_pas_raw.rda 114Kb 86Kb xz
example_pat.rda 965Kb 444Kb xz
example_pat_failure_A.rda 527Kb 259Kb xz
example_pat_failure_B.rda 411Kb 198Kb xz
example_sensor_scaqmd.rda 108Kb 76Kb xz
I get the same WARNING if I submit to win-builder.R-project.org.
I've built many packages in the past and am currently stumped as to what
might be happening.
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