For help, have a look at:

https://www.r-project.org/help.html

as well as:

https://www.r-project.org/mail.html

Best Matthias

Agree with Dr. Kohl suggestions

Thank you for your response Fadhaa Ali

R forum is a very good platform. I used to ask question related to R during my PhD study.

Stackoverflow is probably one of the best ressources.

Stackover flow as many others said also look into google groups (R blogger), there are dedicated groups of this kimd at LinkedIn too where people respond actively.

Stack overflow is for programming questions about R (and other things). Stack exchange has a bunch of sites including for R and those are more focused on statistics questions. If you are not a programmer, try exchange first. (https://stackoverflow.com/questions/tagged/r)

I agree with the suggestions from Mr. Daniel Wright.

Prof. Tuan Nguyen has series of R lecture on Youtube, which you can refer. You can comments as the questions and definitely, he will answer you.

Hi there, you can use these sites.

Good luck.

https://www.r-bloggers.com/

https://stackoverflow.com/questions/tagged/r

https://community.rstudio.com/

https://stats.stackexchange.com/questions/tagged/r

https://stat.ethz.ch/mailman/listinfo/r-help

https://rviews.rstudio.com/

https://r.789695.n4.nabble.com/

A simple and easy to learn guide for beginners who are starting with R.

A try-on tutorial has been provided with guided comments, on: 1. Basic Operations 2. Basic Statistics 3. Charts and graphs

https://vedangvats.com/zero-to-r-in-30-minutes

Hi I am getting problems of analysis of my data in R. I have an experiment having several factors. I have 130 genotypes, in 2 locations and 2 seasons, each plot were replicated twice, I have also blocks within replication. wthin plot I used repeated measures (4 harvest times). I want to run a mixed model analysis where I would like to fit harvest time factor on 3 order polynomial to check linear, quadratic and cubic effect. Is someone can help me on this issue, may be a similar script. Thanks

https://stackoverflow.com

Astere Bararyenya can use lme4 package to fit your model. Here its documentation:

https://cran.r-project.org/web/packages/lme4/lme4.pdf

R programming is a very particular topic, so you can look for its queries on various forums that write and discuss it. If you have any questions regarding academia, You can refer to the Typeset community. It is a discussion forum where people ask and share their views on academic publishing, manuscript submission, and more. It is straightforward to use and is a source of excellent research writing and publishing knowledge. Different topics are segregated into separate spaces that makes it super easy to look for what you need.

https://community.typeset.io/

The number of samples in exprObj (i.e. cols) must be the same as in data (i.e rows), how can I handle such errors?

I would suggest and recommend R forum for help.