AggregateValues

Synopsis

AggregateValues lists a set of values and computes aggregate values.

Description

AggregateValues lists a set of elements specified by entries , and computes a string value for each specified by key . AggregateValues computes aggregates functions specified by aggregators for each distinct value. The list of entry keys and their aggregate values are written into outFile

ExampleCounting words in the corpus:

      	<word-count class="AggregateValues">
      		<entries>documents.sections.layer:words</entries>
      		<key>@form</key>
      		<aggregators>
      			<count/>
      		</aggregators>
      		<outFile>word-count.txt</outFile>
      	</word-count>
      

Snippet

📋

<aggregatevalues class="AggregateValues">
    <entries></entries>
    <key></key>
    <outFile></outFile>
</aggregatevalues>

Mandatory parameters

entries

Expression evaluated from the corpus as a list of elements.

key

Value of each entry. This expression is evaluated as a string from the entry element.

outFile

File where to write the result.

Optional parameters

aggregators

Aggregate functions to compute for each value.

separator

Character that separates columns in the result file.

Deprecated parameters