Check out grDevices::hcl.pals (also
https://www.zeileis.org/papers/Zeileis+Hornik+Murrell-2009.pdf) or the
RColorBrewer package (also https://colorbrewer2.org) for principled selection
of colors. Sounds like you're interested in 'qualitative' color palletes.
Martin Morgan
On 11/29/21, 4:23 PM, "Bioc-devel on behalf of Meng Chen"
<bioc-devel-boun...@r-project.org on behalf of mengche...@gmail.com> wrote:
Thanks. I think it may work in theory, generating "enough" distinct colors
is fairly easy. Then the problem will be how to find a subset of colors of
size n, and the selected colors are still most distinguishable. I think I
will do this with my eyes if no other methods, a tedious job.
But at least for my curiosity, I still want to know if there are other ways
to achieve this. I feel like 80% of people who use the distinctColorPallete
function actually don't need the "random" feature :) Thanks.
On Mon, Nov 29, 2021 at 9:39 PM James W. MacDonald <jmac...@uw.edu> wrote:
> It appears that you don't actually want random colors, but instead you
> want the same colors each time. Why not just generate the vector of
'random
> distinct colors' one time and save the vector of colors?
>
> -----Original Message-----
> From: Bioc-devel <bioc-devel-boun...@r-project.org> On Behalf Of Meng Chen
> Sent: Monday, November 29, 2021 3:21 PM
> To: bioc-devel@r-project.org
> Subject: [Bioc-devel] Use set.seed inside function
>
> Dear BioC team and developers,
>
> I am using BiocCheck to check my package, it returns a warning:
> " Remove set.seed usage in R code"
>
> I am using "set.seed" inside my functions, before calling function
> distinctColorPalette (randomcoloR package) in order to generate
> reproducible "random distinct colors". So what would be the best practice
> to solve this warning? I think 1. use set.seed and don't change anything.
> 2. use the set.seed function, but include something like below inside the
> function *gl.seed <- .Random.seed* *on.exit(assign(".Random.seed",
gl.seed,
> envir = .GlobalEnv))* 3. use some other functions for the purpose
>
> Any suggestions will be appreciated. Thanks.
> --
> Best Regards,
> Chen
>
> [[alternative HTML version deleted]]
>
> _______________________________________________
> Bioc-devel@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/bioc-devel
>
--
Best Regards,
Chen
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