1.17.2 linestyles vs linetypes

Lines can have additional properties such as linewidth. You can associate these various properties, as well as equivalent properties for point symbols, into user-defined "linestyles" using the command ‘set style line‘. Once you have defined a linestyle, you can use it in a plot command to control the appearance of one or more plot elements.

Whereas ‘linetypes‘ are permanent (they last until you explicitly redefine them), ‘linestyles‘ are temporary. They only last until the next reset of the graphics state.

Examples:

     # define a new line style with terminal-independent color cyan,
     # linewidth 3, and associated point type 6 (a circle with a dot in it).
     set style line 5 lt rgb "cyan" lw 3 pt 6
     plot sin(x) with linespoints ls 5          # user-defined line style 5

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