collect

R2026b

Class: matlab.compiler.mlspark.RDD
Namespace: matlab.compiler.mlspark

(To be removed) Return a MATLAB cell array that contains all of the elements in an RDD

matlab.compiler.mlspark.RDD.collect will be removed in a future release. There is no replacement functionality. For more information, see Version History.

Syntax

result = collect(obj)


Description

result = collect(obj) returns a MATLAB^® cell array that contains all of the elements in obj.

Input Arguments

obj — Input RDD

RDD object

An input RDD, specified as an RDD object.

Output Arguments

result — Elements of an RDD

cell array

Elements of an RDD, returned as a cell array.

Examples

Return Contents of an RDD

%% Connect to Spark
sparkProp = containers.Map({'spark.executor.cores'}, {'1'});
conf = matlab.compiler.mlspark.SparkConf('AppName','myApp', ...
                        'Master','local[1]','SparkProperties',sparkProp);
sc = matlab.compiler.mlspark.SparkContext(conf);

%% Collect
x = sc.parallelize({'A', 2, 'C'});
y = sc.parallelize({'D', 1});
z = x.cartesian(y);
out = z.collect()

Version History

Introduced in R2016b

R2026b: To be removed

Support for deploying applications using the MATLAB API for Spark™ will be removed in a future release. There is no replacement functionality.