Point symbols and linetype with group_by()

[psimm]

Could you please implement aesthetic mapping by group to have different linetypes and symbols for each group?

Currently different groups already get different colors but all the same point symbols: iris %>% group_by(Species) %>% e_charts(x = Sepal.Length) %>% e_scatter(Sepal.Width)

That is a good default, so what's missing is an optional argument. I'm not sure what the best interface would be here. The x in e_charts() along with grouping already works in a similar way to aes() in ggplot2, so that could be an inspiration.

[helgasoft]

Scatter charts define only one symbol, i.e. group styling has not been implemented, yet.
But there is a workaround you may like with labels, which are formattable.

iris %>% group_by(Species) %>% e_charts(x = Sepal.Length) %>% 
  e_scatter(Sepal.Width, symbol='fake', 
    label=list(show=TRUE, formatter=htmlwidgets::JS("function(params){ 
      return( (params.seriesName=='setosa' ? String.fromCodePoint(0x1F354) : 
              (params.seriesName=='virginica' ? '👽' : '❤️')));
 }")))

Just kidding, serious researchers + emojis, non mais ça va pas ou quoi !