If an ordinate is followed by
a nonnumeric string, that string is printed as a
label beginning on the point.
Labels may be surrounded with quotes
in which case they may be empty or contain blanks
labels never contain newlines.
If a specified lower limit exceeds the upper limit,
Supply abscissas automatically; no
x-values appear in the input.
Spacing is given by the next
argument (default 1).
A second optional argument is the starting point for
automatic abscissas (default 0, or 1
with a log scale in
x, or the lower limit given by
Break (disconnect) the graph after each label in the input.
Character string given by next argument
is default label for each point.
Next argument is grid style,
0 no grid, 1 frame with ticks, 2 full grid (default).
Next argument is a legend to title the graph.
are automatically printed as part
of the title unless a
-s option is present.
Next argument is mode (style)
of connecting lines:
0 disconnected, 1 connected.
Some devices give distinguishable line styles
for other small integers.
Mode -1 (default) begins with style 1 and
rotates styles for successive curves under option
The ordinates for
n superposed curves appear in the input
with each abscissa value.
The next argument is
Next argument is one or more of the characters
bcgkmrwy, choosing pen colors by their initial letter, as in
Successive curves will cycle through the colors in the given order.
Save screen; no new page for this graph.
-x l ||
l is present,
x-axis is logarithmic.
Next 1 (or 2) arguments are lower (and upper)
Third argument, if present, is grid spacing on
Normally these quantities are determined automatically.
-y l ||
Make automatically determined
y scales equal.
Next argument is fraction of space for height.
Similarly for width.
Next argument is fraction of space to move right before plotting.
Similarly to move up before plotting.
Transpose horizontal and vertical axes.
-a now applies to the vertical axis.)