glenda.party
term% ls -F
term% pwd
$home/manuals/9front/1/graph
term% cat index.txt
GRAPH(1)                    General Commands Manual                   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 (x-values) and ordinates (y-values) 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 x-values appear in the input.
              Spacing is given by the next argument (default 1).  A second op‐
              tional  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 discon‐
              nected, 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.

       -p     Next argument is one or more of the characters bcgkmrwy,  choos‐
              ing  pen colors by their initial letter, as in plot(6).  Succes‐
              sive curves will cycle through the colors in the given order.

       -s     Save screen; no new page for this graph.

       -x l   If l is present, x-axis 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  deter‐
              mined 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 plot‐
              ting.

       -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 re‐
       versed.

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)