In Part 1 of this series on Gnuplot, there was a lot of talk about line colors, font settings, export scripts, and the like, but no actual graphs. Input from graphs can be read from the command line or, more commonly from external files. These files are expected to be columns of data with some explicit separator character delimiting the columns. By default the delimiter is a space but can be set to a comma or a pipe (perhaps for SQLite data). Lets take the spa... [more]
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