Установите разные позиции меток осей и меток на линейке
I would like to realign/offset the x-axis and associated tick marks of a barplot. This should be simple but I am having trouble finding an answer. Below is some example data with 24 categories.
xval = c(1:24) count = c(0.03,0.03,0.08,0.06,0.11,0.4,0.3,0.5,0.5,0.6,0.4,0.1,0.1,0.4,0.2,0.1,0.06,0.05,0.03,0.02,0.01,0.03,0.01,0.02) df = as.data.frame(cbind(xval, count))
I can easily produce a barplot with tick marks aligned at the bar midpoints using the below code:
mp <- barplot(df$count, space=0, axes=FALSE) axis(side=2, pos=-0.2) axis(side=1, at =mp, labels=df$xval)
I can also shift the entire x-axis (labels and ticks) to align with the outside of bars using the below (although this now fails to incorporate the last bar into the axis):
axis(side=1, at =mp-0.5, labels=df$xval)
While I would like the x-axis and associated tick marks to be aligned with the bar boundaries (i.e. a tick mark on either side of the bar instead of in the centre), I want the x-axis labels to remain at the bar midpoints. Is there an easy way to achieve this?