is_empty

Syntax for defining complex filtering expressions in a programmatic way.
A filtering query, built as a nested list configuration, can be easily stored in other formats like 'YAML' or 'JSON'.
What's more, it's possible to convert such configuration to a valid expression that can be applied to
popular 'dplyr' package operations.

Krystian Igras

queryBuilder

Programmatic Way to Construct Complex Filtering Queries

Damien Sorel

is_empty function

<dl><dt>x</dt>
<dd>String value.</dd></dl>

Arguments

Compare the string to empty value — is_empty

<dl>

<dt>x</dt>
<dd>String value.</dd>

</dl>

is_empty: Compare the string to empty value

Description

Usage

Value

Arguments