.TH GRAPH 1.CT 1 numbers graphics.SH NAMEgraph \- draw a graph.SH SYNOPSIS.B graph[.I option ...].SH DESCRIPTION.I Graphwith no options takes pairs of numbers from thestandard input as abscissas.RI ( x -values)and ordinates.RI ( y -values)of a graph.Successive points are connected by straight lines.The graph is encoded on the standard outputfor display by.IR  plot (1)filters..PPIf an ordinate is followed bya nonnumeric string, that string is printed as alabel beginning on the point.Labels may be surrounded with quotes.L" "in which case they may be empty or contain blanksand numbers;labels never contain newlines..PPThe following options are recognized,each as a separate argument..TP.B  -aSupply abscissas automatically; no.IR x -valuesappear in the input.Spacing is given by the nextargument (default 1).A second optional argument is the starting point forautomatic abscissas (default 0, or 1with a log scale in.IR x ,or the lower limit given by.BR -x )..TP.B  -bBreak (disconnect) the graph after each label in the input..TP.B  -cCharacter string given by next argumentis default label for each point..TP.B  -gNext argument is grid style,0 no grid, 1 frame with ticks, 2 full grid (default)..TP.B  -lNext argument is a legend to title the graph.Grid rangesare automatically printed as partof the title unless a.B -soption is present..TP.B  -mNext argument is mode (style)of connecting lines:0 disconnected, 1 connected.Some devices give distinguishable line stylesfor other small integers.Mode \-1 (default) begins with style 1 androtates styles for successive curves under option.BR -o ..TP.B -o(Overlay.)The ordinates for.I nsuperposed curves appear in the inputwith each abscissa value.The next argument is.IR n ..TP.B -pNext argument is one or more of the characters.B bcgkmrwy,choosing pen colors by their initial letter, as in.IR plot (6).Successive curves will cycle through the colors in the given order..TP.B  -sSave screen; no new page for this graph..TP.B -x lIf.B lis present,.IR x -axisis logarithmic.Next 1 (or 2) arguments are lower (and upper).I xlimits.Third argument, if present, is grid spacing on.I xaxis.Normally these quantities are determined automatically..TP.B -y lSimilarly for.IR y ..TP.B -eMake automatically determined.I xand.I yscales equal..TP.B  -hNext argument is fraction of space for height..TP.B  -wSimilarly for width..TP.B  -rNext argument is fraction of space to move right before plotting..TP.B  -uSimilarly to move up before plotting..TP.B  -tTranspose horizontal and vertical axes.(Option.B -anow applies to the vertical axis.).PPIf a specified lower limit exceeds the upper limit,the axisis reversed..SH SOURCE.B /sys/src/cmd/graph.SH "SEE ALSO".IR plot (1), .IR grap (1).SH BUGSSegments that run out of bounds are dropped, not windowed.Logarithmic axes may not be reversed.Option.B -eactually makes automatic limits, rather than automatic scaling,equal.