Minor Tick Marks
Adds minor tick marks to an existing plot. All minor tick marks that will fit on the axes will be drawn.
minor.tick(nx=2, ny=2, tick.ratio=0.5, x.args = list(), y.args = list())
nx |
number of intervals in which to divide the area between major tick marks on the X-axis. Set to 1 to suppress minor tick marks. |
ny |
same as |
tick.ratio |
ratio of lengths of minor tick marks to major tick marks. The length
of major tick marks is retrieved from |
x.args |
additionl arguments (e.g. |
y.args |
same as |
plots
Frank Harrell
Department of Biostatistics
Vanderbilt University
fh@fharrell.com
Earl Bellinger
Max Planck Institute
earlbellinger@gmail.com
Viktor Horvath
Brandeis University
vhorvath@brandeis.edu
# Plot with default settings
plot(runif(20), runif(20))
minor.tick()
# Plot with arguments passed to axis()
plot(c(0,1), c(0,1), type = 'n', axes = FALSE, ann = FALSE)
# setting up a plot without axes and annotation
points(runif(20), runif(20)) # plotting data
axis(1, pos = 0.5, lwd = 2) # showing X-axis at Y = 0.5 with formatting
axis(2, col = 2) # formatted Y-axis
minor.tick( nx = 4, ny = 4, tick.ratio = 0.3,
x.args = list(pos = 0.5, lwd = 2), # X-minor tick format argumnets
y.args = list(col = 2)) # Y-minor tick format argumentsPlease choose more modern alternatives, such as Google Chrome or Mozilla Firefox.