Question

I want to plot data in a graph with larger font-size for the lables.

x = c(0:10)
y = sin(x) + 10

plot (
    x, y, type="o",
    xlab = "X values",
    ylab = "Y values",
    cex.axis = "2",
    cex.lab = "2",
    las = 1
)

Unfortunately the numbers on the y-axis overlap the label for the y-axis. I tried to use mar, but that did not work (By the way, how can I find out which graphic parameters can be directly used in the plot command and which have to be set with the par()-method? ).

How can I avoid that labels overlap?

Thanks for your help.

Sven

Answer 1

Use par(mar) to increase the plot margins and par(mgp) to move the axis label.

par(mar = c(6.5, 6.5, 0.5, 0.5), mgp = c(5, 1, 0))
#Then call plot as before

---

In the help page ?par it explains which parameters can be used directly in plot and which must be called via par.

There are several parameters can only be set by a call to ‘par()’:

    • ‘"ask"’,

    • ‘"fig"’, ‘"fin"’,

    • ‘"lheight"’,

    • ‘"mai"’, ‘"mar"’, ‘"mex"’, ‘"mfcol"’, ‘"mfrow"’, ‘"mfg"’,

    • ‘"new"’,

    • ‘"oma"’, ‘"omd"’, ‘"omi"’,

    • ‘"pin"’, ‘"plt"’, ‘"ps"’, ‘"pty"’,

    • ‘"usr"’,

    • ‘"xlog"’, ‘"ylog"’

 The remaining parameters can also be set as arguments (often via
 ‘...’) to high-level plot functions such as ‘plot.default’,
 ‘plot.window’, ‘points’, ‘lines’, ‘abline’, ‘axis’, ‘title’,
 ‘text’, ‘mtext’, ‘segments’, ‘symbols’, ‘arrows’, ‘polygon’,
 ‘rect’, ‘box’, ‘contour’, ‘filled.contour’ and ‘image’.  Such
 settings will be active during the execution of the function,
 only.  However, see the comments on ‘bg’ and ‘cex’, which may be
 taken as _arguments_ to certain plot functions rather than as
 graphical parameters.