I recently built R 4.1.1 (Patched) from source, as I have many older versions over the years. This version, on Ubuntu 18.04.4 LTS:
R 4.1.1 (Patched), 2021-09-21, svn.rev 80946, x86_64-pc-linux-gnu Surprisingly, "make check" fails, which I don't recall seeing before. The error is in from stats-Ex.R, which unfortunately terminates all further testing! This particular error, "step factor ... reduced below 'minFactor'" does not seem very serious, but I can't figure out why it's happening. I installed with "make install install-tests" as usual, which seemed to work fine. Running the same tests after install, I'm able to get more coverage by using errorsAreFatal=FALSE. However, it seems the rest of the 'stats' tests after the bad one still do not run. I'm confused about the intent of this particular test. The comment above it seems to says that it's SUPPOSED to throw this error, yet getting the error still terminates further testing, which seems strange. What's supposed to happen here? Any ideas on why this error might be occurring, and how I should debug it? What's the right way for me to disable this one failing test, so the ones after it can run? Thanks for your help! ## "make check" output: make[1]: Entering directory '/home/nobackup/co/R/R-4-1-branch/Build-x86_64/tests' make[2]: Entering directory '/home/nobackup/co/R/R-4-1-branch/Build-x86_64/tests' make[3]: Entering directory '/home/nobackup/co/R/R-4-1-branch/Build-x86_64/tests/Examples' Testing examples for package 'base' Testing examples for package 'tools' comparing 'tools-Ex.Rout' to 'tools-Ex.Rout.save' ... OK Testing examples for package 'utils' Testing examples for package 'grDevices' comparing 'grDevices-Ex.Rout' to 'grDevices-Ex.Rout.save' ... OK Testing examples for package 'graphics' comparing 'graphics-Ex.Rout' to 'graphics-Ex.Rout.save' ... OK Testing examples for package 'stats' Error: testing 'stats' failed Execution halted Makefile:37: recipe for target 'test-Examples-Base' failed make[3]: *** [test-Examples-Base] Error 1 make[3]: Leaving directory '/home/nobackup/co/R/R-4-1-branch/Build-x86_64/tests/Examples' ../../tests/Makefile.common:198: recipe for target 'test-Examples' failed make[2]: *** [test-Examples] Error 2 make[2]: Leaving directory '/home/nobackup/co/R/R-4-1-branch/Build-x86_64/tests' ../../tests/Makefile.common:184: recipe for target 'test-all-basics' failed make[1]: *** [test-all-basics] Error 1 make[1]: Leaving directory '/home/nobackup/co/R/R-4-1-branch/Build-x86_64/tests' Makefile:305: recipe for target 'check-all' failed make: *** [check-all] Error 2 ## From file: tests/Examples/stats-Ex.Rout.fail > ## Here, requiring close convergence, you need to use more accurate numerical > ## differentiation; this gives Error: "step factor .. reduced below > 'minFactor' .." > options(digits = 10) # more accuracy for 'trace' > ## IGNORE_RDIFF_BEGIN > try(nlm1 <- update(nlmod, control = list(tol = 1e-7))) # where central diff. > work here: Warning in nls(formula = y ~ Const + A * exp(B * x), algorithm = "default", : No starting values specified for some parameters. Initializing 'Const', 'A', 'B' to '1.'. Consider specifying 'start' or using a selfStart model > (nlm2 <- update(nlmod, control = list(tol = 8e-8, nDcentral=TRUE), > trace=TRUE)) Warning in nls(formula = y ~ Const + A * exp(B * x), algorithm = "default", : No starting values specified for some parameters. Initializing 'Const', 'A', 'B' to '1.'. Consider specifying 'start' or using a selfStart model 1017460.306 (4.15e+02): par = (1 1 1) 758164.7503 (2.34e+02): par = (13.42031396 1.961485 0.05947543745) 269506.3538 (3.23e+02): par = (51.75719816 -13.09155957 0.8428607709) 68969.21893 (1.03e+02): par = (76.0006985 -1.935226745 1.0190858) 633.3672230 (1.29e+00): par = (100.3761515 8.624648402 5.104490259) 151.4400218 (9.39e+00): par = (100.6344391 4.913490985 0.2849209569) 53.08739850 (7.24e+00): par = (100.6830407 6.899303317 0.4637755074) 1.344478640 (5.97e-01): par = (100.0368306 9.897714142 0.5169294939) 0.9908415909 (1.55e-02): par = (100.0300625 9.9144191 0.5023516843) 0.9906046057 (1.84e-05): par = (100.0288724 9.916224018 0.5025207336) 0.9906046054 (9.95e-08): par = (100.028875 9.916228366 0.50252165) 0.9906046054 (9.93e-08): par = (100.028875 9.916228366 0.50252165) Error in nls(formula = y ~ Const + A * exp(B * x), algorithm = "default", : step factor 0.000488281 reduced below 'minFactor' of 0.000976562 Calls: update -> update.default -> eval -> eval -> nls Execution halted ## After install, start R with --vanilla and run tests like this: ## https://cran.r-project.org/doc/manuals/r-patched/R-admin.html#Testing-a-Unix_002dalike-Installation Sys.setenv(LC_COLLATE = "C", LC_TIME = "C", LANGUAGE = "en") pdf("tests.pdf") tools::testInstalledPackages(scope="base", errorsAreFatal=FALSE) -- Andrew Piskorski <a...@piskorski.com> ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel