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I am experimenting to use ggvis for my daily report. One issue I came across is that for a dataset that I intended to plot x-axis as in the data order. However, the actual plot shows up in the alphabet order.

Is there any hidden parameters to change x-axis order for Bar chart in R?

Step LER Pre 3.2 DS 2.8 SiARC 2.2 OPL 1.9 ILD 1.6 Oxide 1.5 library(ggvis) ler <- read.csv("shinyapps/EUV/data/by_step_LER.csv") ler %>% ggvis(x = ~Step, y = ~LER) %>% layer_bars()
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  • Add a level to your "Step" values, with factor. You can assign the order you want. Commented Feb 16, 2015 at 6:07
  • Thanks a lot! class(ler$Step) has already returned as "factor". Seems barchart is plotting factor as in alphabet ordr by default. Commented Feb 16, 2015 at 23:29

1 Answer 1

Reset to default
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library(ggvis) ler <- structure(list(Step = structure(1:6, .Label = c("Pre", "DS", "SiARC", "OPL", "ILD", "Oxide"), class = "factor"), LER = c(3.2, 2.8, 2.2, 1.9, 1.6, 1.5)), .Names = c("Step", "LER"), row.names = c(NA, -6L), class = "data.frame") ler$Step <- factor(ler$Step, levels = ler$Step) ler %>% ggvis(x = ~Step, y = ~LER) %>% layer_bars()

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