I am currently creating several graphs using ggplot2. Each square displays similar data, but the ranges of discrete x-axes, as well as continuous y-axes, are not always the same. Some graphs have only two discrete values of x, while others have three or five. In addition, continuous y axes have very different ranges; some range from 0 to 80, others from 0-2.5.
Ideally, I would like to get the following result: for each graph, all y axes should be the same absolute length, and each discrete "step" along the x axes should be the same absolute length.
I created a simple example using histograms instead of graphs that show the problem:
library(ggplot2)
library(grid)
x1 <- factor(c('a','b','c','d','e'))
y1 <- c(10,20,50,60,80)
df1 <- data.frame(x1,y1)
x2 <- factor(c('a','b'))
y2 <- c(2,3.5)
df2 <- data.frame(x2,y2)
g1 <- ggplot(df1, aes(x = x1, y = y1)) +
geom_bar(stat='identity')
g2 <- ggplot(df2, aes(x=x2,y=y2)) +
geom_bar(stat='identity')
grid.newpage()
pushViewport(viewport(layout = grid.layout(2, 1)))
print(g1, vp = viewport(layout.pos.row = 1, layout.pos.col = 1))
print(g2, vp = viewport(layout.pos.row = 2, layout.pos.col = 1))
This gives the following result:
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@tonytonov answer
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