February 2012
Beginner to intermediate
220 pages
5h 8m
English
Content preview from gnuplot CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Handling volatile data [new]
Older versions of gnuplot ran into a problem when dealing, for example, with datafiles whose content is subject to change. When using gnuplot to examine such volatile data interactively, we might want to zoom in or out, or add a title to the plot to prepare it for saving. The problem is that each of these operations either requires an explicit call to replot or, in the case of mouse operations, calls it implicitly. And when the replot command is issued, the datafile is read anew, and the new data is plotted. What if we want to manipulate the plot while retaining the data already read in?
The new features in gnuplot version 4.4 for dealing with volatile data were added with these issues in mind.
How to do it…
The volatile ...
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