Axis

an object which indicates the range over which an axis should
    be drawn

the points at which tick-marks are to be drawn.

an integer specifying which side of the plot the axis is
    to be drawn on.  The axis is placed as follows: 1=below,
    2=left, 3=above and 4=right.

side

this can either be a logical value specifying whether
    (numerical) annotations are to be made at the tickmarks, or a
    character or expression vector of labels to be placed at the
    tickpoints. If this is specified as a character or expression
    vector, <code>at</code> should be supplied and they should be the same
    length.

labels

Arguments to be passed to methods and perhaps then to
    <code><a rd-options="" href="/link/axis?package=graphics&version=3.3.0" data-mini-rdoc="graphics::axis">axis</a></code>.


  Generic function to add a suitable axis to the current plot.


aplot

axis

R-core R-core@R-project.org

graphics

The R Graphics Package

axis function

the points at which tick-marks are to be drawn.  Non-finite
    (infinite, <code>NaN</code> or <code>NA</code>) values are omitted.  By default
    (when <code>NULL</code>) tickmark locations are computed, see
    &#145;Details&#146; below.

this can either be a logical value specifying whether
    (numerical) annotations are to be made at the tickmarks, or a
    character or expression vector of labels to be placed at the
    tickpoints.  (Other objects are coerced by <code><a rd-options='' href='as.graphicsAnnot'>as.graphicsAnnot</a></code>.)
    If this is not logical, <code>at</code> should also be supplied and of the
    same length.  If <code>labels</code> is of length zero after coercion,
    it has the same effect as supplying <code>TRUE</code>.

a logical value specifying whether tickmarks and an axis line
    should be drawn.

tick

the number of lines into the margin at which the axis line
    will be drawn, if not <code>NA</code>.

line

the coordinate at which the axis line is to be drawn:
    if not <code>NA</code> this overrides the value of <code>line</code>.

a logical value indicating whether the axis should be
    drawn in the outer plot margin, rather than the standard plot
    margin.

outer

font for text.  Defaults to <code>par("font")</code>.

font

line type for both the axis line and the tick marks.

line widths for the axis line and the tick
    marks. Zero or negative values will suppress the line or ticks.

lwd, lwd.ticks

colors for the axis line and the tick marks
    respectively.  <code>col = NULL</code> means to use <code>par("fg")</code>,
    possibly specified inline, and <code>col.ticks = NULL</code> means to use
    whatever color <code>col</code> resolved to.

col, col.ticks

adjustment (see <code><a rd-options='' href='par'>par</a>("adj")</code>) for all labels
    <em>parallel</em> (&#145;horizontal&#146;) to the reading direction.  If
    this is not a finite value, the default is used (centring for
    strings parallel to the axis, justification of the end nearest the
    axis otherwise).

hadj

adjustment for each tick label <em>perpendicular</em> to the
    reading direction.  For labels parallel to the axes, <code>padj = 0</code>
    means right or top alignment, and <code>padj = 1</code> means left or bottom
    alignment.  This can be a vector given a value for each string, and
    will be recycled as necessary.

    If <code>padj</code> is not a finite value (the default), the value of
    <code>par("las")</code> determines the adjustment.  For strings plotted
    perpendicular to the axis the default is to centre the string.

padj

other <a rd-options='' href='graphical parameters'>graphical parameters</a> may also be passed as
    arguments to this function, particularly, <code>cex.axis</code>,
    <code>col.axis</code> and <code>font.axis</code> for axis annotation, <code>mgp</code>
    and <code>xaxp</code> or <code>yaxp</code> for positioning, <code>tck</code> or
    <code>tcl</code> for tick mark length and direction, <code>las</code> for
    vertical/horizontal label orientation, or <code>fg</code> instead of
    <code>col</code>, and <code>xpd</code> for clipping.  See <code><a rd-options='' href='par'>par</a></code> on these.

    Parameters <code>xaxt</code> (sides 1 and 3) and <code>yaxt</code> (sides 2 and
    4) control if the axis is plotted at all.

    Note that <code>lab</code> will partial match to argument
    <code>labels</code> unless the latter is also supplied.  (Since the
    default axes have already been set up by <code><a rd-options='' href='plot.window'>plot.window</a></code>,
    <code>lab</code> will not be acted on by <code>axis</code>.)

Adds an axis to the current plot, allowing the
  specification of the side, position, labels, and other options.


axis: Generic Function to Add an Axis to a Plot

Description

Usage

Arguments

Value

Details

See Also