Reference

This section catalogues the features and capabilities of both the Envision language and its standard library. This section is intended for an advance audience who has already mastered the Envision basics.

Keywords

The list of words that have built-in semantic in Envision.

Reserved keywords: and as at auto autodiff by const cross def default define desc draw each else enum expect fail false foreach group if in index into keep loop match mod montecarlo not or order over read return sample scan show sort span table then true unsafe until when where while with

Contextual keywords: assert barchart boolean date form histogram interval label latest linechart logo max min markdown month nosort number piechart plot private process pure ranvar scatter scalar slicepicker summary text upload week zedfunc

Operators

The operators below are listed in increasing order of precedence. For instance, since and is before or, then A or B and C is interpreted as A or (B and C). Operators with the same precedence are grouped left-to-right: A * B / C is (A * B) / C.

Aggregators

The aggregators are similar to functions, but they benefit from a richer syntax with options. Below, we list the aggregators supported by Envision.

Logic: all any

Statistics: entropy mode percentile stdev stdevp

Zedfunc: sum

Functions

The primary purpose of functions is to extend the capabilities of Envision whenever the basic language syntax would not be sufficient. Below, we list the functions supported by Envision.