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Dynamically rotate ggplot axis labels if they will overlap

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I'm wondering if there is a way to check if x axis labels are going to overlap and only if they are to then rotate them using ggplot2 in R. My current problem is that I am using a function to plot data and I would like to be able to feed it different amounts of data but still get a sensible looking plot.

I understand that if the plot window is resized then when the overlapping kicks in would be different, so not sure if this could be added during a save when the sizes are known.

Does anyone have any hints or workarounds?

Here is a very much simplified example:

library(ggplot)

testdf1 <- data.frame(Year = as.factor(rep(1990:2000, each = 10)), value = rnorm(110, mean = rep(sample(1:11),each = 10 )))
testdf2 <- data.frame(Year = as.factor(rep(1951:2000, each = 10)), value = rnorm(500, mean = rep(sample(1:11,50, replace = T),each = 10 )))

myplotfun <- function(dat)
 ggplot(dat, aes(x = Year, y = value))+
 geom_boxplot()

plt1 <- myplotfun(testdf1)
plt2 <- myplotfun(testdf2)

I could, of course, then add

plt2 <- plt2 +
 theme(axis.text.x = element_text(angle = 90, hjust = 1))

or add this within the function so that it happens to all plots, but I'd generally prefer the plots to be unrotated (so I don't want apply to all) and I don't want to have to manually review and assign rotation or not.

Note this example has the axis labels as years, so in theory I don't need them all, but I'd like to be able to use this in other cases where the labels are categories and therefore the need to all be labelled.

I have found it hard to find any information on this other than this unanswered thread https://www.reddit.com/r/rstats/comments/951vc1/overlapping_labels_in_ggplot/

This plot poses a similar question but the answer (while helpful to the poster) will not solve my problem as I require all labels to be shown
overlapping axis label depending on the window size

r ggplot2 axis-labels

share|improve this question

asked Mar 25 at 2:40

user2738526user2738526

866513

add a comment | 

0

I'm wondering if there is a way to check if x axis labels are going to overlap and only if they are to then rotate them using ggplot2 in R. My current problem is that I am using a function to plot data and I would like to be able to feed it different amounts of data but still get a sensible looking plot.

I understand that if the plot window is resized then when the overlapping kicks in would be different, so not sure if this could be added during a save when the sizes are known.

Does anyone have any hints or workarounds?

Here is a very much simplified example:

library(ggplot)

testdf1 <- data.frame(Year = as.factor(rep(1990:2000, each = 10)), value = rnorm(110, mean = rep(sample(1:11),each = 10 )))
testdf2 <- data.frame(Year = as.factor(rep(1951:2000, each = 10)), value = rnorm(500, mean = rep(sample(1:11,50, replace = T),each = 10 )))

myplotfun <- function(dat)
 ggplot(dat, aes(x = Year, y = value))+
 geom_boxplot()

plt1 <- myplotfun(testdf1)
plt2 <- myplotfun(testdf2)

I could, of course, then add

plt2 <- plt2 +
 theme(axis.text.x = element_text(angle = 90, hjust = 1))

or add this within the function so that it happens to all plots, but I'd generally prefer the plots to be unrotated (so I don't want apply to all) and I don't want to have to manually review and assign rotation or not.

Note this example has the axis labels as years, so in theory I don't need them all, but I'd like to be able to use this in other cases where the labels are categories and therefore the need to all be labelled.

I have found it hard to find any information on this other than this unanswered thread https://www.reddit.com/r/rstats/comments/951vc1/overlapping_labels_in_ggplot/

This plot poses a similar question but the answer (while helpful to the poster) will not solve my problem as I require all labels to be shown
overlapping axis label depending on the window size

r ggplot2 axis-labels

share|improve this question

asked Mar 25 at 2:40

user2738526user2738526

866513

add a comment | 

I'm wondering if there is a way to check if x axis labels are going to overlap and only if they are to then rotate them using ggplot2 in R. My current problem is that I am using a function to plot data and I would like to be able to feed it different amounts of data but still get a sensible looking plot.

I understand that if the plot window is resized then when the overlapping kicks in would be different, so not sure if this could be added during a save when the sizes are known.

Does anyone have any hints or workarounds?

Here is a very much simplified example:

library(ggplot)

testdf1 <- data.frame(Year = as.factor(rep(1990:2000, each = 10)), value = rnorm(110, mean = rep(sample(1:11),each = 10 )))
testdf2 <- data.frame(Year = as.factor(rep(1951:2000, each = 10)), value = rnorm(500, mean = rep(sample(1:11,50, replace = T),each = 10 )))

myplotfun <- function(dat)
 ggplot(dat, aes(x = Year, y = value))+
 geom_boxplot()

plt1 <- myplotfun(testdf1)
plt2 <- myplotfun(testdf2)

I could, of course, then add

plt2 <- plt2 +
 theme(axis.text.x = element_text(angle = 90, hjust = 1))

or add this within the function so that it happens to all plots, but I'd generally prefer the plots to be unrotated (so I don't want apply to all) and I don't want to have to manually review and assign rotation or not.

Note this example has the axis labels as years, so in theory I don't need them all, but I'd like to be able to use this in other cases where the labels are categories and therefore the need to all be labelled.

I have found it hard to find any information on this other than this unanswered thread https://www.reddit.com/r/rstats/comments/951vc1/overlapping_labels_in_ggplot/

This plot poses a similar question but the answer (while helpful to the poster) will not solve my problem as I require all labels to be shown
overlapping axis label depending on the window size

r ggplot2 axis-labels

share|improve this question

asked Mar 25 at 2:40

user2738526user2738526

866513

testdf1 <- data.frame(Year = as.factor(rep(1990:2000, each = 10)), value = rnorm(110, mean = rep(sample(1:11),each = 10 )))
testdf2 <- data.frame(Year = as.factor(rep(1951:2000, each = 10)), value = rnorm(500, mean = rep(sample(1:11,50, replace = T),each = 10 )))

myplotfun <- function(dat)
 ggplot(dat, aes(x = Year, y = value))+
 geom_boxplot()

plt1 <- myplotfun(testdf1)
plt2 <- myplotfun(testdf2)

plt2 <- plt2 +
 theme(axis.text.x = element_text(angle = 90, hjust = 1))

share|improve this question

asked Mar 25 at 2:40

user2738526user2738526

866513

share|improve this question

asked Mar 25 at 2:40

user2738526user2738526

866513

asked Mar 25 at 2:40

user2738526user2738526

866513

asked Mar 25 at 2:40

user2738526user2738526

866513