![]() This is easy to do because each area can be defined by a combination of the function plot and the primitive xfpoly, which is a filled polygon with the base at y=0 (see the parameter base). ![]() We can plot the data with the function bar or with an area plot (or a wide range of other tools, but this is only an example), which requires a bit of coding. These two columns are the per cent recoveries of 13 chemical compounds extracted from environmental samples using two different techniques. ![]() In this first example, we need to graphically compare two series of experimental data. Because the full code for each example is too long for a printed article, it’s freely (as in freedom and in beer) available at In this article, seven new (or almost new) plot types are covered with some practical applications, all made with Scilab 5.5.1 under Linux Mint 17 Xfce. To avoid any confusion, the word variable in the sense of a physical quantity (or chemical, graphical …) will be replaced by the word parameter. These words will be used only in reference to the keywords. Note that the keywords of Scilab are categorised as primitives, commands, variables, functions and xcos functions. So, its necessary to write some code to obtain them. ![]() Scilab has very good plotting capabilities, but some plot types are not available as primitives or functions. Scilab ( ) is open source software for numerical computation with a syntax similar to MathWorks MATLAB. Seven different types of plots used in seven different computations are explored, along with illustrations. This article discusses various types of plots based on mathematical computations done in Scilab, which is open source software for numerical computation. ![]()
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