
GRAPH(1) GRAPH(1)
NAME
graph  draw a graph
SYNOPSIS
graph [ option ... ]
DESCRIPTION
Graph with no options takes pairs of numbers from the standard input as abscissas (xval
ues) and ordinates (yvalues) of a graph. Successive points are connected by straight
lines. The graph is encoded on the standard output for display by plot(1) filters.
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 and numbers; labels never contain newlines.
The following options are recognized, each as a separate argument.
a Supply abscissas automatically; no xvalues 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 x).
b Break (disconnect) the graph after each label in the input.
c Character string given by next argument is default label for each point.
g Next argument is grid style, 0 no grid, 1 frame with ticks, 2 full grid (default).
l Next argument is a legend to title the graph. Grid ranges are automatically
printed as part of the title unless a s option is present.
m 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
o.
o (Overlay.) The ordinates for n superposed curves appear in the input with each
abscissa value. The next argument is n.
s Save screen; no new page for this graph.
x l If l is present, xaxis is logarithmic. Next 1 (or 2) arguments are lower (and
upper) x limits. Third argument, if present, is grid spacing on x axis. Normally
these quantities are determined automatically.
y l Similarly for y.
e Make automatically determined x and y scales equal.
h Next argument is fraction of space for height.
w Similarly for width.
r Next argument is fraction of space to move right before plotting.
u Similarly to move up before plotting.
t Transpose horizontal and vertical axes. (Option a now applies to the vertical
axis.)
If a specified lower limit exceeds the upper limit, the axis is reversed.
SOURCE
/sys/src/cmd/graph
SEE ALSO
plot(1), grap(1)
BUGS
Segments that run out of bounds are dropped, not windowed. Logarithmic axes may not be
reversed. Option e actually makes automatic limits, rather than automatic scaling,
equal.
GRAPH(1) 
