GNUPlot Manual

98 gnuplot 4.0 36 SET-SHOW
36.57.6.10 Impulses The impulses style displays a vertical line from the x axis (not the graph
border), or from the grid base for splot, to each point.
36.57.6.11 Lines The lines style connects adjacent points with straight line segments. See also
linetype (p. 94), linewidth (p. 94), and linestyle (p. 94).
36.57.6.12 Linespoints The linespoints style does both lines and points, that is, it draws a small
symbol at each point and then connects adjacent points with straight line segments. The command set
pointsize may be used to change the size of the points. See set pointsize (p. 89) for its usage.
linespoints may be abbreviated lp.
36.57.6.13 Points The points style displays a small symbol at each point. The command set
pointsize may be used to change the size of the points. See set pointsize (p. 89) for its usage.
36.57.6.14 Steps The steps style is only relevant to 2-d plotting. It connects consecutive points
with two line segments: the first from (x1,y1) to (x2,y1) and the second from (x2,y1) to (x2,y2). See
also
steps demo.
36.57.6.15 Vectors The vectors style draws a vector from (x,y) to (x+xdelta,y+ydelta). Thus it
requires four columns of data. It also draws a small arrowhead at the end of the vector.
Example:
plot ’file.dat’ using 1:2:3:4 with vectors head filled lt 2
set clip one and set clip two affect drawing vectors. Please see set clip (p. 58) and arrowstyle
(p. 92).
36.57.6.16 Xerrorbars The xerrorbars style is only relevant to 2-d data plots. xerrorbars is like
dots, except that a horizontal error bar is also drawn. At each point (x,y), a line is drawn from (xlow,y)
to (xhigh,y) or from (x-xdelta,y) to (x+xdelta,y), depending on how many data columns are provided.
A tic mark is placed at the ends of the error bar (unless set bars is used — see set bars (p. 55) for
details).
36.57.6.17 Xyerrorbars The xyerrorbars style is only relevant to 2-d data plots. xyerrorbars
is like dots, except that horizontal and vertical error bars are also drawn. At each point (x,y), lines
are drawn from (x,y-ydelta) to (x,y+ydelta) and from (x-xdelta,y) to (x+xdelta,y) or from (x,ylow) to
(x,yhigh) and from (xlow,y) to (xhigh,y), depending upon the number of data columns provided. A tic
mark is placed at the ends of the error bar (unless set bars is used — see set bars (p. 55) for details).
If data are provided in an unsupported mixed form, the using filter on the plot command should be
used to set up the appropriate form. For example, if the data are of the form (x,y,xdelta,ylow,yhigh),
then you can use
plot ’data’ using 1:2:($1-$3):($1+$3):4:5 with xyerrorbars
36.57.6.18 Yerrorbars The yerrorbars (or errorbars) style is only relevant to 2-d data plots.
yerrorbars is like points, except that a vertical error bar is also drawn. At each point (x,y), a line is
drawn from (x,y-ydelta) to (x,y+ydelta) or from (x,ylow) to (x,yhigh), depending on how many data
columns are provided. A tic mark is placed at the ends of the error bar (unless set bars is used — see
set bars (p. 55) for details). See also
errorbar demo.