Error in match.fun(FUN): 'ggfun("scales_transform_df")' is not a function, character or symbol

[tungttnguyen]

I ran into a problem with ggplotly(). The following example worked with the CRAN version 3.4.2 but not with the dev version. Thanks!

library(dplyr)
library(ggplot2)
packageVersion("ggplot2")
#> [1] '3.4.2.9000'

data("airquality")

airquality <- airquality %>% 
  select(Month, Day, Temp) %>% 
  mutate(Date = as.Date(paste("1973", Month, Day, sep = "-")))

plt1 <- ggplot(airquality,
               aes(x = Date,
                   y = Temp)) +
  geom_line() +
  theme_bw()
plt1

library(plotly)
packageVersion("plotly")
#> [1] '4.10.1'

ggplotly(plt1, 
         tooltip = c("x", "y", "color", "text"),
         dynamicTicks = TRUE) %>% 
  rangeslider() %>%
  layout(
    legend = list(orientation = "h", x = 0.1, y = -0.5)
  )
#> Error in match.fun(FUN): 'ggfun("scales_transform_df")' is not a function, character or symbol

^{Created on 2023-04-24 with reprex v2.0.2}

[smouksassi]

please note that plotly has a different repo:
https://github.com/plotly/plotly.R/issues

[tungttnguyen]

please note that plotly has a different repo: https://github.com/plotly/plotly.R/issues

The recent changes in ggplot2 broke working codes. That's why I thought I should report it here

[teunbrand]

This looks to me like a change in the internals have broken something in plotly.

If we look up the source of the ggfun() function that throws the error here:

https://github.com/plotly/plotly.R/blob/10e010088751efd5670d4daf2970b2eb5d91ea1a/R/ggplotly.R#L1393-L1395

We can see plotly uses the getFromNamespace() trick mentioned by Thomas at this post. Admittedly, I have also used that trick, but the trick is very fragile because ggplot2 might change internals as they see fit.

In any case, it might make sense to loop in @cpsievert about this change sooner rather than later. I think the break stems from #5144, and it might make it easier to avoid getFromNameSpace() because the scales functions are now encapsulated in the ScalesList class that can be accessed at build time.

[tungttnguyen]

This looks to me like a change in the internals have broken something in plotly.

If we look up the source of the ggfun() function that throws the error here:

https://github.com/plotly/plotly.R/blob/10e010088751efd5670d4daf2970b2eb5d91ea1a/R/ggplotly.R#L1393-L1395

We can see plotly uses the getFromNamespace() trick mentioned by Thomas at this post. Admittedly, I have also used that trick, but the trick is very fragile because ggplot2 might change internals as they see fit.

In any case, it might make sense to loop in @cpsievert about this change sooner rather than later. I think the break stems from #5144, and it might make it easier to avoid getFromNameSpace() because the scales functions are now encapsulated in the ScalesList class that can be accessed at build time.

Thanks @teunbrand for checking! I opened an issue on plotly.R to report it

[teunbrand]

Thanks for propagating the issue! I'll close this here then.

[fsalemi]

@tungttnguyen Hi there,
Were you able to resolve this issue? I am still getting this error:
Error in match.fun(FUN) : 'ggfun("scales_transform_df")' is not a function, character or symbol

Thanks

[cpsievert]

@fsalemi have you tried updating plotly?

[fsalemi]

@cpsievert Thank you for your response. I did upgrade plotly on my new computer last year. However, I was using my old laptop for a quick question yesterday, and I forgot the plotly version was still the old one.
Thanks again.