.TH GRAPH 1G .SH NAMEgraph \- draw a graph.SH SYNOPSIS.B graph[ option ] ....SH DESCRIPTION.I Graphwith no options takes pairs of numbers from thestandard input as abscissas andordinates of a graph.Successive points are connected by straight lines.The graph is encoded on the standard outputfor display by the.IR  plot (1)filters..PPIf the coordinates of a point are followed bya nonnumeric string, that string is printed as alabel beginning on the point.Labels may be surrounded with quotes "...", inwhich 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 (they are missing fromthe input); spacing is given by the nextargument (default 1).A second optional argument is the starting point forautomatic abscissas (default 0 or 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 label for graph..TP.B  \-mNext argument is mode (style)of connecting lines:0 disconnected, 1 connected (default).Some devices give distinguishable line stylesfor other small integers..TP.B  \-sSave screen, don't erase before plotting..TP\fB\-x\fR [ \fBl\fR ]If.B lis present, x axis is logarithmic.Next 1 (or 2) arguments are lower (and upper).IR x ""limits.Third argument, if present, is grid spacing on .I xaxis.Normally these quantities are determined automatically..TP\fB\-y\fR [ \fBl\fR ]Similarly for.IR y ..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 \-xnow applies to the vertical axis.).PPA legend indicating grid range is producedwith a grid unless the.B \-soption is present..PPIf a specified lower limit exceeds the upper limit,the axisis reversed..SH "SEE ALSO"spline(1), plot(1).SH BUGS.I Graphstores all points internally and drops those for whichthere isn't room..brSegments that run out of bounds are dropped, not windowed..brLogarithmic axes may not be reversed.