glenda.party
term% ls -F
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.

       -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)