gnuplot documentation

46 XYERRORLINES gnuplot 4.3 51
The xyerrorbars style is only relevant to 2D 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. 88) for details). Either 4 or 6 input
columns are required.
4 columns: x y xdelta ydelta
6 columns: x y xlow xhigh ylow yhigh
with xyerrorbars
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
44 Yerrorbars
The yerrorbars (or errorbars) style is only relevant
to 2D 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. 88) for
details). Either 3 or 4 input columns are required.
3 columns: x y ydelta
4 columns: x y ylow yhigh
with yerrorbars
See also
errorbar demo.
45 Xerrorlines
The xerrorlines style is only relevant to 2D data
plots. xerrorlines is like linespoints, except that
a horizontal error line 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. 88) for details). The
basic style requires either 3 or 4 columns:
3 columns: x y xdelta
4 columns: x y xlow xhigh
with xerrorlines
46 Xyerrorlines