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Plan 9 - man page for graph (plan9 section 1)

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GRAPH(1)										 GRAPH(1)

       graph - draw a graph

       graph [ option ...  ]

       Graph  with no options takes pairs of numbers from the standard input as abscissas (x-val-
       ues) 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 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     (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 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

       If a specified lower limit exceeds the upper limit, the axis is reversed.


       plot(1), grap(1)

       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,

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