convert vignettes to Rmd and create pkgdown site

[timelyportfolio]

Based on recent activity, there appears to be an effort to update and submit a new version to CRAN. If this is the case, I think some updated Rmd vignettes (possibly with tint) might be nice. I'll volunteer if there is interest.

[braverock]

Always happy to have more contributions and contributors. What do you have in mind?

[timelyportfolio]

@braverock, I'll try to convert one of the vignettes as a starting point, and then we can go from there. Thanks as always for your incredible work on R + finance.

[timelyportfolio]

@braverock, sorry this took so long, but I quickly (not complete) converted the PA-charts vignette to Rmd and ran pkgdown::build_site(). http://timelyportfolio.github.io/PerformanceAnalytics/ is the result. The vignette is here. If you like it, then I am willing to try to convert the other vignettes. There is also a lot we can do with styling.

[braverock]

I like it! what are the thoughts from @peterccarl and @joshuaulrich ?

I'm not sure that there are a lot of reasons to spend too much time converting existing vignettes rather than writing new ones. knitr can render Sweave vignettes too, it is more about changing the VignetteEngine, if I understand the process correctly.

[joshuaulrich]

I think it looks great! I do have a couple thoughts. Neither of them are strong suggestions for anyone to actually implement.

1. Group functions by topic on the reference page.
2. Indent or change the font size of the sub-topics in the vignette's contents navigation bar.

[peterccarl]

I agree, it looks very nice.  Thank you for doing this!  pccOn Apr 8, 2018 11:20 AM, Joshua Ulrich <notifications@github.com> wrote:I think it looks great! I do have a couple thoughts. Neither of them are strong suggestions for anyone to actually implement. Group functions by topic on the reference page.Indent or change the font size of the sub-topics in the vignette's contents navigation bar. —You are receiving this because you were mentioned.Reply to this email directly, view it on GitHub, or mute the thread.

[timelyportfolio]

@braverock @joshuaulrich @peterccarl I'll take this as a reason to keep moving forward. Styling is easy, but I wanted to be careful not to add another dependency. I had originally done the vignette with [tint](https://github.com/eddelbuettel/tint), but as far as I can tell vignettes require at least a SUGGESTS, so then I just chose the basic vignette Rmd. In terms of the pkgdown site with gh-pages, we can easily add HTML/CSS/JS frameworks.

I have wanted for a long time to do a vignette on styling PerformanceAnalytics tables and charts. Maybe that would make a good test case.

Converting existing vignettes is fairly time consuming, but I think eventually we would want all to be consistent.

Thanks for all you work on this and everything else finance/time-series in R.