An simple graph can help you visualize complex data and be a very useful tool in presentations and reports. The plotutils package [1] brings together a group of programs that all access the functions of GNU Libplot.
This library produces device-agnostic vector graphics and even animations in various output formats. There are bindings for C and C++ among other library classes. And, because of the effective interface programs for the shell, in most cases, you don't need to program anything – it's often enough to invoke a smartly crafted command line.
The plotutils package is found in the major distribution repositories so that it can be set up easily with the corresponding package manager. In Ubuntu, you can just use the apt-get install plotutils command with administrative rights. This step pulls in all the necessary dependencies.
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