trend is a general-purpose, efficient trend graph for "live" data. Data is read in ASCII format from a file or continuously from a FIFO, and is played in real-time into a multi-pass trend (much like a CRT oscilloscope or a strip chart). trend can be used as a rapid analysis tool for progressive or time-based data series together with trivial scripting.
| Tags | Scientific/Engineering Visualization Utilities Monitoring |
|---|---|
| Licenses | LGPL |
| Operating Systems | POSIX Unix Mac OS X |
| Implementation | C++ |
Recent releases


Changes: Polling rate limits can now be configured dynamically. Latency sampling now also shows maximal sync times. NaNs can now be entered in the stream and highlighted. A new key binding 'Z' was added to specify view limits by center and amplitude. Memory usage was reduced. Support for multiple graphs in a single instance was added. Standard input can now be used easily with '-'.


Changes: Two graph filling modes were implemented. The package now includes a proper man page.


Changes: Changing zero now aligns the graph instead of the grid. A loop with a negative 'grid-spec' was fixed.


Changes: The console is no longer used for input/output; an embedded line editor is used instead.


Changes: Build fixes were made for Solaris and Darwin/Mac OS X.