Henrik Bengtsson
2015-Aug-14 09:09 UTC
[Rd] capture.output() duplicates last line unless newline (R-devel bug)
In R-devel (2015-08-12 r69024), capture.output() incorrectly duplicates the last line unless it ends with a newline. I don't see this in R 3.2.2 RC (2015-08-13 r69049). It seems to have started fairily recently; I spotted this yesterday after starting to get errors in my R.utils check that use capture.output(), cf. https://www.r-project.org/nosvn/R.check/r-devel-linux-x86_64-debian-clang/R.utils-00check.html Examples:> x <- "a" > cat(x)a>> capture.output(cat(x))[1] "a" "a"> x <- "a\n" > cat(x)a> capture.output(cat(x))[1] "a"> x <- "a\nb" > cat(x)a b>> capture.output(cat(x))[1] "a" "b" "b"> x <- "a\nb\n" > cat(x)a b> capture.output(cat(x))[1] "a" "b"> capture.output(cat(x))[1] "a" "b"> x <- c("a", "b") > cat(x)a b>> capture.output(cat(x))[1] "a b" "a b"> x <- c("a", "b\n") > cat(x)a b> capture.output(cat(x))[1] "a b"> sessionInfo()R Under development (unstable) (2015-08-12 r69024) Platform: x86_64-w64-mingw32/x64 (64-bit) Running under: Windows 7 x64 (build 7601) Service Pack 1 locale: [1] LC_COLLATE=English_United States.1252 [2] LC_CTYPE=English_United States.1252 [3] LC_MONETARY=English_United States.1252 [4] LC_NUMERIC=C [5] LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] R.utils_2.1.0-9000 R.oo_1.19.0-9000 R.methodsS3_1.7.0-9000 loaded via a namespace (and not attached): [1] tools_3.3.0 /Henrik
Prof Brian Ripley
2015-Aug-14 09:24 UTC
[Rd] capture.output() duplicates last line unless newline (R-devel bug)
But it was changed over 24h ago in R-devel, 2 commits later .... See e.g. https://cran.r-project.org/bin/windows/base/rdevel.html for when not to report on 'R (Under Development)' (and you really should have known that, as a Windows user). On 14/08/2015 10:09, Henrik Bengtsson wrote:> In R-devel (2015-08-12 r69024), capture.output() incorrectly > duplicates the last line unless it ends with a newline. I don't see > this in R 3.2.2 RC (2015-08-13 r69049). It seems to have started > fairily recently; I spotted this yesterday after starting to get > errors in my R.utils check that use capture.output(), cf. > https://www.r-project.org/nosvn/R.check/r-devel-linux-x86_64-debian-clang/R.utils-00check.html > > Examples: > >> x <- "a" >> cat(x) > a> >> capture.output(cat(x)) > [1] "a" "a" > >> x <- "a\n" >> cat(x) > a >> capture.output(cat(x)) > [1] "a" > >> x <- "a\nb" >> cat(x) > a > b> >> capture.output(cat(x)) > [1] "a" "b" "b" > >> x <- "a\nb\n" >> cat(x) > a > b >> capture.output(cat(x)) > [1] "a" "b" > >> capture.output(cat(x)) > [1] "a" "b" >> x <- c("a", "b") >> cat(x) > a b> >> capture.output(cat(x)) > [1] "a b" "a b" > >> x <- c("a", "b\n") >> cat(x) > a b >> capture.output(cat(x)) > [1] "a b" > > >> sessionInfo() > R Under development (unstable) (2015-08-12 r69024) > Platform: x86_64-w64-mingw32/x64 (64-bit) > Running under: Windows 7 x64 (build 7601) Service Pack 1 > > locale: > [1] LC_COLLATE=English_United States.1252 > [2] LC_CTYPE=English_United States.1252 > [3] LC_MONETARY=English_United States.1252 > [4] LC_NUMERIC=C > [5] LC_TIME=English_United States.1252 > > attached base packages: > [1] stats graphics grDevices utils datasets methods base > > other attached packages: > [1] R.utils_2.1.0-9000 R.oo_1.19.0-9000 R.methodsS3_1.7.0-9000 > > loaded via a namespace (and not attached): > [1] tools_3.3.0 > > /Henrik-- Brian D. Ripley, ripley at stats.ox.ac.uk Emeritus Professor of Applied Statistics, University of Oxford 1 South Parks Road, Oxford OX1 3TG, UK
peter dalgaard
2015-Aug-14 09:30 UTC
[Rd] capture.output() duplicates last line unless newline (R-devel bug)
The fix for PR#16481 had a side effect involving capture.output(), so this may be transient, please recheck whether the issue has disappeared in the meantime. -pd On 14 Aug 2015, at 11:09 , Henrik Bengtsson <henrik.bengtsson at ucsf.edu> wrote:> In R-devel (2015-08-12 r69024), capture.output() incorrectly > duplicates the last line unless it ends with a newline. I don't see > this in R 3.2.2 RC (2015-08-13 r69049). It seems to have started > fairily recently; I spotted this yesterday after starting to get > errors in my R.utils check that use capture.output(), cf. > https://www.r-project.org/nosvn/R.check/r-devel-linux-x86_64-debian-clang/R.utils-00check.html > > Examples: > >> x <- "a" >> cat(x) > a> >> capture.output(cat(x)) > [1] "a" "a" > >> x <- "a\n" >> cat(x) > a >> capture.output(cat(x)) > [1] "a" > >> x <- "a\nb" >> cat(x) > a > b> >> capture.output(cat(x)) > [1] "a" "b" "b" > >> x <- "a\nb\n" >> cat(x) > a > b >> capture.output(cat(x)) > [1] "a" "b" > >> capture.output(cat(x)) > [1] "a" "b" >> x <- c("a", "b") >> cat(x) > a b> >> capture.output(cat(x)) > [1] "a b" "a b" > >> x <- c("a", "b\n") >> cat(x) > a b >> capture.output(cat(x)) > [1] "a b" > > >> sessionInfo() > R Under development (unstable) (2015-08-12 r69024) > Platform: x86_64-w64-mingw32/x64 (64-bit) > Running under: Windows 7 x64 (build 7601) Service Pack 1 > > locale: > [1] LC_COLLATE=English_United States.1252 > [2] LC_CTYPE=English_United States.1252 > [3] LC_MONETARY=English_United States.1252 > [4] LC_NUMERIC=C > [5] LC_TIME=English_United States.1252 > > attached base packages: > [1] stats graphics grDevices utils datasets methods base > > other attached packages: > [1] R.utils_2.1.0-9000 R.oo_1.19.0-9000 R.methodsS3_1.7.0-9000 > > loaded via a namespace (and not attached): > [1] tools_3.3.0 > > /Henrik > > ______________________________________________ > R-devel at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel-- Peter Dalgaard, Professor, Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Office: A 4.23 Email: pd.mes at cbs.dk Priv: PDalgd at gmail.com
Henrik Bengtsson
2015-Aug-14 10:45 UTC
[Rd] capture.output() duplicates last line unless newline (R-devel bug)
Thanks for the updates. I'm glad it was taken care of. I would normally have waited, but I wanted to bring this up asap in case there was a risk for it to enter R 3.2.2. /Henrik On Fri, Aug 14, 2015 at 11:30 AM, peter dalgaard <pdalgd at gmail.com> wrote:> The fix for PR#16481 had a side effect involving capture.output(), so this may be transient, please recheck whether the issue has disappeared in the meantime. > > -pd > > On 14 Aug 2015, at 11:09 , Henrik Bengtsson <henrik.bengtsson at ucsf.edu> wrote: > >> In R-devel (2015-08-12 r69024), capture.output() incorrectly >> duplicates the last line unless it ends with a newline. I don't see >> this in R 3.2.2 RC (2015-08-13 r69049). It seems to have started >> fairily recently; I spotted this yesterday after starting to get >> errors in my R.utils check that use capture.output(), cf. >> https://www.r-project.org/nosvn/R.check/r-devel-linux-x86_64-debian-clang/R.utils-00check.html >> >> Examples: >> >>> x <- "a" >>> cat(x) >> a> >>> capture.output(cat(x)) >> [1] "a" "a" >> >>> x <- "a\n" >>> cat(x) >> a >>> capture.output(cat(x)) >> [1] "a" >> >>> x <- "a\nb" >>> cat(x) >> a >> b> >>> capture.output(cat(x)) >> [1] "a" "b" "b" >> >>> x <- "a\nb\n" >>> cat(x) >> a >> b >>> capture.output(cat(x)) >> [1] "a" "b" >> >>> capture.output(cat(x)) >> [1] "a" "b" >>> x <- c("a", "b") >>> cat(x) >> a b> >>> capture.output(cat(x)) >> [1] "a b" "a b" >> >>> x <- c("a", "b\n") >>> cat(x) >> a b >>> capture.output(cat(x)) >> [1] "a b" >> >> >>> sessionInfo() >> R Under development (unstable) (2015-08-12 r69024) >> Platform: x86_64-w64-mingw32/x64 (64-bit) >> Running under: Windows 7 x64 (build 7601) Service Pack 1 >> >> locale: >> [1] LC_COLLATE=English_United States.1252 >> [2] LC_CTYPE=English_United States.1252 >> [3] LC_MONETARY=English_United States.1252 >> [4] LC_NUMERIC=C >> [5] LC_TIME=English_United States.1252 >> >> attached base packages: >> [1] stats graphics grDevices utils datasets methods base >> >> other attached packages: >> [1] R.utils_2.1.0-9000 R.oo_1.19.0-9000 R.methodsS3_1.7.0-9000 >> >> loaded via a namespace (and not attached): >> [1] tools_3.3.0 >> >> /Henrik >> >> ______________________________________________ >> R-devel at r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel > > -- > Peter Dalgaard, Professor, > Center for Statistics, Copenhagen Business School > Solbjerg Plads 3, 2000 Frederiksberg, Denmark > Phone: (+45)38153501 > Office: A 4.23 > Email: pd.mes at cbs.dk Priv: PDalgd at gmail.com > > > > > > > > >