How to remove trace0 here?

Question

The info "trace0" always shows beside the hover text box of the blue line, How can I remove it? Why not on the orange line? What the trace0 exactly mean?

library(plotly)

fig <- plot_ly() 
fig <- fig %>%
  add_trace(
    type = 'scatter',
    mode = 'lines+markers',
    x = c(1,2,3,4,5),
    y = c(2.02825,1.63728,6.83839,4.8485,4.73463),
    text = c("Text A", "Text B", "Text C", "Text D", "Text E"),
    hovertemplate = paste('<i>Price</i>: $%{y:.2f}',
                        '<br><b>X</b>: %{x}<br>',
                        '<b>%{text}</b>'),
    showlegend = FALSE
  ) 
fig <- fig %>%
  add_trace(
    type = 'scatter',
    mode = 'lines+markers',
    x = c(1,2,3,4,5),
    y = c(3.02825,2.63728,4.83839,3.8485,1.73463),
    hovertemplate = 'Price: %{y:$.2f}<extra></extra>',
    showlegend = FALSE
  )

fig

Thanks in advance!

score 12 · Accepted Answer · answered Mar 17 '20 at 05:29

12

Add <extra></extra>:

hovertemplate = paste('<i>Price</i>: $%{y:.2f}',
                      '<br><b>X</b>: %{x}<br>',
                      '<b>%{text}</b><extra></extra>'),

answered Mar 17 '20 at 05:29

Stéphane Laurent

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That works great, but do you know why? Shouldn't that be the default behaviour in plotly? What does the `trace0` label mean? – Luis Chaves Rodriguez Nov 01 '20 at 11:54
@LuisChavesRodriguez It is the trace index. If you add another trace, it would be named `trace1` and so on. – callmeanythingyouwant May 19 '21 at 13:45

How to remove trace0 here?

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