| commit | 115952474aa241d28625749275ff0043f2b92f96 | [log] [tgz] |
|---|---|---|
| author | Denton Gentry <dgentry@google.com> | Fri Apr 12 15:57:09 2013 -0700 |
| committer | Denton Gentry <dgentry@google.com> | Fri Apr 12 15:57:09 2013 -0700 |
| tree | fc88eef77278668fdfbedcf49995af58d9b34e5c | |
| parent | d46994087e91a6ad275e60cf097a5dc1f372a8bf [diff] |
Add a delta operator Computes the difference between successive samples. 1. If the value increases, emit the difference. 2. If the value decreases, emit the value. 3. If the value does not change, outputs undefined This is most useful for a heatgrid of a continuously increasing counter, to show where the counter changes.