[Rd] Long model specification causes aov() to abort with error
m@ech|er @end|ng |rom @t@t@m@th@ethz@ch
Mon Apr 13 11:45:27 CEST 2020
>>>>> Jan Hauffa
>>>>> on Sat, 11 Apr 2020 15:51:49 +0200 writes:
> Dear R developers,
> while experimenting with repeated measures ANOVA, I found out that it is
> possible to construct a model specification that is syntactically valid,
> but causes aov() to abort with an error. A minimal reproducer and its
> output are attached to this mail. I was able to reproduce this problem
> with the latest SVN revision.
> The root cause is similar to that of bug 15377: aov() calls deparse() on
> the model specification. If the resulting string is too long, e.g. due
> to long column names, deparse() performs line breaking and returns a
> vector of strings, which aov() does not handle correctly.
> The attached patch fixes this problem by making aov() call deparse1().
> It also corrects an error in the documentation of deparse1().
Thank you. What you write above seems all reasonable
(and as a poster who is able to attach 3 different plain text
files, named logically (i.e. without calling them <foo>.txt),
I pre-judge your programming abilities to be quite high !)
I'll look at the cases etc and will use your proposals.
(The only question for now: why did you not take the extra step
and ask for R-bugs registration and do a regular bug report
-> https://www.r-project.org/bugs.html )
ETH Zurich and R Core Team
> Please CC me on replies as I am not subscribed to the mailing list.
> With best regards,
> Jan Hauffa
> x[DELETED ATTACHMENT external: aov.diff, plain text]
> x[DELETED ATTACHMENT external: aov-error.txt, plain text]
> x[DELETED ATTACHMENT external: aov-testcase.R, plain text]
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