Re: [R] Should help of estimate in t.test be corrected?
Hi Thanks for your feedback. I didn't think about that. Still, the mean difference is computed for paired, not because there are two samples. IMHO, the help should be updated. Best, Samuel Le 2023-04-03 à 12:10, PIKAL Petr a écrit : Hi You need to use paired option t.test(x=0:4, y=sample(5:9), paired=TRUE)$estimate mean difference -5 Cheers Petr -Original Message- From: R-help On Behalf Of Samuel Granjeaud IR/Inserm Sent: Sunday, April 2, 2023 11:39 PM To: r-help@r-project.org Subject: [R] Should help of estimate in t.test be corrected? Hi, Not important, but IMHO the estimate component of the t.test holds an estimate of mean of each group, never a difference. The doc says "estimatethe estimated mean or difference in means depending on whether it was a one-sample test or a two-sample test." > t.test(0:4)$estimate mean of x 2 > t.test(0:4, 5:9)$estimate mean of x mean of y 2 7 Best, Samuel __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Should help of estimate in t.test be corrected?
Hi, Not important, but IMHO the estimate component of the t.test holds an estimate of mean of each group, never a difference. The doc says "estimate the estimated mean or difference in means depending on whether it was a one-sample test or a two-sample test." > t.test(0:4)$estimate mean of x 2 > t.test(0:4, 5:9)$estimate mean of x mean of y 2 7 Best, Samuel __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Why R >= 4.1 warns about installing Rtools on Windows?
Hi,
Martin M. helped me focussing the context of my question. The main
result of my trials (various R4.x installations) after his mail is that
the warning is issued when using *devtools* to install a package *from
github*. When installing a package with install.packages(), no warning.
The warning looks like:
devtools::install_github("i-cyto/cytoBatchNorm")
WARNING: Rtools is required to build R packages, but no version of
Rtools compatible with R 4.2.1 was found. (Only the following
incompatible version(s) of Rtools were found: 4.0)
Please download and install Rtools 4.2 from
https://cran.r-project.org/bin/windows/Rtools/ or
https://www.r-project.org/nosvn/winutf8/ucrt3/.
Downloading GitHub repo i-cyto/cytoBatchNorm@HEAD
...
I don't think there is a need of Rtools. Let me know if you think there
is a need of Rtools being installed prior to installing a pure R
package. From your answers, I may contact the maintainer of devtools.
Thanks for reading.
Bonne journée,
Samuel
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[R] Why R >= 4.1 warns about installing Rtools on Windows?
Hi, I don't understand why Rtoosl seems to be required even if a package is pure R. For sure, this is just a warning, but it frightens new comers. So, why encouraging people add stuff that will be probably unneeded? Have a nice, Samuel __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] stats:: spline's method could not be monoH.FC
Hi, I have just noticed that the argument method of the spline function of the stats package does not allow to specify monoH.FC although the documentation tells it should be possible. I know how to program a workaround. This post intends to alert the maintainers. Stay safe, Samuel [[alternative HTML version deleted]] __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Identify does sort the locations
Thanks Paul. I have started using locator(). I also found the gatepoints package that sounds interestering. https://CRAN.R-project.org/package=gatepoints Happy R, Samuel On 15-02-2018 21:50, Paul Murrell wrote: Hi Sorry, I think this has always been the behaviour (and the documentation has always been wrong). Using locator() yourself could be a workaround (with a little more effort required to determine the closest data point). Paul __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Identify does sort the locations
Hi Paul, Thanks for your answer. I am wondering if in the previous versions, let's say 2.1x, the data were in the selection order... Let me know if there a R fonction taht I can code. Do you think I should use locator function and match points on my own? Best, Samuel __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Identify does sort the locations
Hi, Using identify function, I think I should get the index of the selected points in the order I clicked them. This is what I read in the help. But I feel they are ordered. Please let me know what I missed. In the following example, I clicked on the points labelled 7, 5 and 1, but I get 1, 5, 7 as output. set.seed(0); x = rnorm(10); y = rnorm(10); plot(x,y); text(x, y, seq(x)); sel = identify(x,y); sel [1] 1 5 7 Any help appreciated, Samuel R version 3.4.3 (2017-11-30) Platform: x86_64-w64-mingw32/x64 (64-bit) Running under: Windows 7 x64 (build 7601) Service Pack 1 Matrix products: default locale: [1] LC_COLLATE=English_United Kingdom.1252 LC_CTYPE=English_United Kingdom.1252 [3] LC_MONETARY=English_United Kingdom.1252 LC_NUMERIC=C [5] LC_TIME=English_United Kingdom.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached): [1] compiler_3.4.3 __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
