I have some data which I have arranged in a table format, the names and [types] of which are as follows:
error_type [string], timeBin [number], error_id [number], numErrors [number], env [one of 4 different strings]
I do some work to extract the data I want, and then I run "table error_type, timeBin, error_id, numErrors, env" to obtain the layout above. I set the visualization to Bubble Chart and this works just fine: I get timeBin on the x-axis, error_id on the y-axis, circle size based on numErrors, and coloring based on error_type. The field "env" is ignored.
Now, I want to set up a trellis layout for this data, such that it's split into 4 Bubble Charts based on the 4 different string values of the field "env". I would expect to do this by setting "Split by" to "env", but I only have the option of splitting by "Aggregations". I even tried adding the option manually through XML:
<option name="trellis.splitBy">env</option>
However, this results in an empty chart display. I'm kind of stumped as to how the trellis layout decides what fields it can split by and how to do so.
Any help is much appreciated.
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