Translate plotmath expressions

[GegznaV]

I have 2 issues using function ggplotly in R:

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Question 1 What are the ways to keep R plotmath expressions while converting ggplot2 plots to plotly format using function ggplotly?

Now the expressions are converted to [object Object] as in this example below:

library(ggplot2)
library(plotly)

qplot(mpg, wt, data = mtcars) +
    ggtitle(expression(bar(x) == sum(frac(x[i], n), i==1, n)))

ggplotly()

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Question 2

How to get rid of double labels in the legend of plotly graph and make them look like in ggplot2 graph? I.e. how to get 6 in stead of (6,6):

qplot(mpg, wt, data = mtcars, colour = as.factor(cyl), fill = as.factor(cyl))

ggplotly()

[cpsievert]

plotmath expressions aren't yet possible. #375 will have to be fixed first.

For question 2, at least in this example, you could avoid the redundant mapping

qplot(mpg, wt, data = mtcars, colour = as.factor(cyl))

[cpsievert]

Perhaps simsalapar::expr2latex(), or it's source, would be useful here

[cpsievert]

Can maybe borrow ideas from https://adv-r.hadley.nz/translation.html#latex

See also https://advanced-r-solutions.rbind.io/translating-r-code.html