User interface for specifying data stream processing language programs for analyzing instrumented software

A computer readable non-transitory storage medium storing instructions thereon, wherein the instructions when executed by a processor cause the processor to perform the steps of:

• receiving a plurality of data streams providing data values generated by instrumented software executing on one or more external systems;
• associating each data stream of the plurality of data streams with at least one dimension of a plurality of dimensions, each dimension describing a property of at least one data stream;
• for each dimension of the plurality of dimensions, calculating at least one statistic associated with the dimension;
• determining a ranking for the plurality of dimensions based on the calculated statistics;
• configuring for presentation a user interface comprising a dimension selector widget, the dimension selector widget displaying at least a subset of the plurality of dimensions in an order based on the ranking, the dimension selector widget further comprising, for each dimension in the selector widget, at least one value of the dimension;
• receiving additional values for at least a portion of the plurality of data streams;
• for each dimension of the plurality of dimensions, recalculating the at least one statistic associated with the dimension based on the additional data values;
• determining an updated ranking for the plurality of dimensions based on the recalculated at least one statistic;
• and
• reconfiguring the display of dimensions in the dimension selector widget based on the updated ranking.