log 10 scale, but tick labels in decimals

[JR Flanders]

I'm struggling with how to show tick labels as decimals (0.01, 0.1, 1...) rather than integers to the base 10 (-2, -1, 0...). Can any of the scales arguments handle this? 

[Dennis Murphy]

Hi:

Is this what you had in mind?

set.seed(253089)
DF <- data.frame(x = 1:20, y = runif(20, 0.0001, 10))

library(ggplot2)
ggplot(DF, aes(x = x, y = y)) +
geom_point() +
scale_y_log10(limits = c(0.000, 10), breaks = c(0.01, 0.1, 0.5, 1, 5, 10))

Dennis

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[Pablo marin-garcia]

Hello Dennis,

I think that you have a typo in the Y lower limit  and it should have at least one 1 at the end: 0.001. Otherwise it fails.

scale_y_log10(limits = c(0.001, 10), breaks = c(0.01, 0.1, 0.5, 1, 5, 10))

You can see plots generated at http://rpubs.com/pamag/59196

I know you can not log-transform data with 0 but I was not expecting to have breaks and limits evaluating the values passed to them. If breaks or limits contain explicitly a 0 the plot fails.

I assume is better to transform the data beforehand and use a scale_y_continuos() for cases you want to plot 0 or negative Y values.

Pablo.

[Dennis Murphy]

Hi:

Thanks for the catch. When I was testing, I used 0.0001 as the lower limit, not 0. I must have mis-typed somewhere when writing the reply. It isn't the first time...

Dennis

[JR Flanders]

Thank you for the replies. I am not sure what went wrong, but the behavior I desired is the the default for ggplot. The following scale argument worked just fine:

scale_x_log10(breaks=c(.01,.1,1,10))

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[Alvaro Morales]

Hi, how would you show the tick labels without decimal if it's above 1?. For example: 0.001, 0.01, 0.1, 1, 10 , 100  and not: 0.001, 0.010, 0.100, 1.000, 10.000, 100.000

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[Ista Zahn]

  scale_y_log10(breaks = c(0.001, 0.01, 0.1, 1, 10 , 100),
                labels = c(0.001, 0.01, 0.1, 1, 10 , 100))