by Oliver Yu
For this post, we'll be focusing on the Y-axis scaling buttons, which are 5 o'clock position when looking at the trend from straight on. There are 3 buttons:
MultiBy default, every trend is plotted as "multi," which is an abbreviation for multiple Y-axis. Each trace on the trend gets its own Y-axis scale where the bottom is the minimum value and the top is the maximum value:
While you get a fuller sense of each trace - since each trace spans the entire range of the graph, there is no sense of what the traces are like in absolute value.
SingleThe left-most button is "single," which refers to plotting all the traces on a single Y-axis. Using this method, you can get a strong sense for how the traces relate to each other.
Compared to the multiple Y-axis, we can now tell that the orange sinusoid is oscillates in a lower range than either of the red or magenta traces.
ChannelThe channel Y-axis scaling divides up the trend in N horizontal slices and plots each trace in its own channel. Using this method, you can hover your cursor over the entire trend and get a feel for what the values actually are.
There are plenty of awesome web-trending applications that give you more precise control over the actual scaling of the Y-axis, and we think they serve the tactical employees (e.g. operators and engineers) well.
The Zymergi implementation of Y-axis scaling is geared towards the time-crunched strategic users like managers and directors.