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I'm trying to replicate a plot drawn by graphpad in r but I have a problem changing the y axis here is an example data and my plot codes:

library(ggplot2) data <- data.frame(names = rep(factor(LETTERS[1:3])), values = c(0.001, 0.02 ,0.95), group = rep("A",3)) ggplot(data, aes(x = group, y = values, fill = names)) + geom_bar(stat = "identity", position='stack') + scale_y_continuous(breaks = c(0.001,0.01,0.1,1), labels=c(0.001,0.01,0.1,1))

the result of my code is on top but I want to plot it like the image on the bottom.

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1 Answer 1

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You can convert the values to their logs, then add a constant that makes all the log values greater than 0. Then re-label the axis appropriately:

data2 <- data %>% mutate(logvalues = log10(values) - min(log10(0.0001))) ggplot(data2[order(-data2$logvalues),], aes(x = group, y = logvalues, fill = names)) + geom_col(position = 'identity') + scale_y_continuous(breaks = 0:4, labels = ~ 10^(.x-4))

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2 Comments

Thanks for the answer, but as you can see C has the biggest value but in your plot is the smallest part. I think it's because scale_y_log10() transforms the data in the log10 scale. Is there a way to just change the y axis without transforming the data?
@RezaKhayami I see what you mean. Check out my update. Is that what you're looking for?

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