Changing Styles of Lines

You can set the style of plotting for both function and data plots. To change the default style for functions, use the set function style command, and to set the default for data plots, use the set data style command. To see the current line style, type the following: You can also add the with keywork to plot and splot commands. For example, You can also specify differant line style when overlaying differant plots, for instance, This produces the following graph:

Different Line Styles

The following line styles are available for 2D function and data plots: `lines`, `points`, `linespoints`, `impulses`, `dots`, `steps`, `errorbars`, `boxes`, and `boxerrorbars`


This is the default plotting style. It connects the data points with a line. Note that if you are doing a Data plot, blanks lines in the data file will cause gnuplot to not connect the data points with a line.


The Points Style puts a point at each data point.


This is a combiniation of the two style - Lines and Points.


The impulses style draws lines from the x-axis to each point.


The Dots style places very small dots for each data point. This would be useful for scatterplots with large amounts of data.


This connects consecutive points with two perpindicular line segments.

Error Bars

GnuPlot can add error bars, which suggest a range of data, only for 2D data plots. They use the third columnd in the file as the "delta" value. For more information, see help plot errorbars.

There is also a BoxErrorBars style that combines this style with boxes.


This draws boxes from the xaxis to the the points.

3D Plots

The only line styles available for 3D plots are "lines", "linespoints", "impulses", and "dots".

For more information on line styles, see help set style
Table of Contents - Previous - Overlaying Multiple Plots - Next - Evaluating Expressions
College of Natural Sciences / University of Northern Iowa /

Copyright 1996 College of Natural Sciences. All Rights Reserved.
Last Modified: 11/4/96