Re: [R] Help Required for R Markdown function.

2021-03-01 Thread Jeff Newmiller
It is standard for install.packages to download packages into a temporary directory before actually installing them. That message has been there for many many years every time you install a contributed package. You have not provided a complete copy of the errors that were generated... I am cert

Re: [R] Image processing in R for BMI calculation

2021-03-01 Thread Sorkin, John
Heinz, I can't tell you how much I appreciated your email. I firmly believe that the rules and norms of the R-help mailing list need to be respected and followed. Nevertheless, I feared that if the comments were left unquestioned people who are not familiar with BMI, its strengths weakness, and

Re: [R] Help Required for R Markdown function.

2021-03-01 Thread Avi Gross via R-help
Calum, Thanks for your thoughts. As mentioned, I fixed the problem. I actually was using require() and also tried library() but the problem was elsewhere as my R installation and startup seemed to no longer have variables set properly to find packages remotely or locally. And yes, I made

Re: [R] Image processing in R for BMI calculation

2021-03-01 Thread Abby Spurdle
I can't help but feel that a discussion on the merit of BMI is a digression, from the OP's question. In addition, to being of no relevance to "R Programming". In relation to Richard's technical comments: As per my previous post, it is possible to get *relative" measures. (Assuming the images are n

Re: [R] Image processing in R for BMI calculation

2021-03-01 Thread Bert Gunter
This discussion is completely offr topic here. Please take it elsewhere. Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Mon, Mar 1, 2021 at 1:42 PM Sorkin, Joh

Re: [R] Image processing in R for BMI calculation

2021-03-01 Thread Sorkin, John
Colleagues, BMI has is failures, but it has demonstrated utility. BMI predicts multiple outcome measures including cardiovascular disease and mortality. Don't through out a useful metric because it is not the perfect metric. As to why BMI is computed as weight/height^2, it can be shown that di

Re: [R] Image processing in R for BMI calculation

2021-03-01 Thread Jim Lemon
I must agree with the criticism of BMI as a diagnostic index. It is easy to tell if a person is - ahem - wide and not very high with a single glance. These elementary parameters can easily be deduced from an image of said person. However, it does not convey that essential ratio of muscle to - ahem

Re: [R] Command history

2021-03-01 Thread Dr Eberhard W Lisse
I don't use R.app. And as I wrote later, there are a number of .Rhistory so it depends on where you start R/RStudio from. el On 2021-03-01 22:29 , David Carlson wrote: > On the Mac there can be 2 files.  The R Studio uses .Rhistory, but Rapp > uses .Rapp.history. > > David L Carlson > > On Su

Re: [R] Command history

2021-03-01 Thread David Carlson
On the Mac there can be 2 files. The R Studio uses .Rhistory, but Rapp uses .Rapp.history. David L Carlson On Sun, Feb 28, 2021 at 9:06 AM Dr Eberhard W Lisse wrote: > On the Mac it is ~/.Rhistory > > el > > On 2021-02-28 15:39 , Mahmood Naderan-Tahan wrote: > > Hi > > > > May I know where is

[R] Call for Abstracts: useR! 2021

2021-03-01 Thread useR! 2021 global
Hello all, submissions for useR! 2021 are open until March 15th. You can submit an abstract for a regular talk, an elevator pitch (that would be the equivalent of a poster at an in-person conference), a panel, or an incubator session. Full details here: https://user2021.r-project.org/participati

Re: [R] Image processing in R for BMI calculation

2021-03-01 Thread T. A. Milne via R-help
"Body Mass Index" is a rather bizarre thing:body.mass.in.kg / height.in.m^2I have never been able to find any biologicalor physical meaning for this. Yet cliniciansare solemnly advised to measure the weight tothe nearest 0.1kg and the height to thenearest 0.1cm.How do you propose to determine t

Re: [R] Image processing in R for BMI calculation

2021-03-01 Thread Richard O'Keefe
"Body Mass Index" is a rather bizarre thing: body.mass.in.kg / height.in.m^2 I have never been able to find any biological or physical meaning for this. Yet clinicians are solemnly advised to measure the weight to the nearest 0.1kg and the height to the nearest 0.1cm. How do you propose to determ