streamsx.math

Mathematics and statistics toolkit.

Namespace: com.ibm.streamsx.math.functions

1. Being able to apply the log(x) function against an entire list of values
2. Being able to compute the distance between two lists

Namespace: com.ibm.streamsx.math.std

This namespace contains definitions for numerical functions from the c++ standard library.

Namespace: com.ibm.streamsx.math.common

This namespace contains a number of special conversion functions, matrix manipulation functions and transformation functions.

Changes

CHANGELOG.md

How to use this toolkit

1. Download the latest release archive streamsx.math-X.Y.Z-el7-amd64--.tgz from: releases
2. Unpack the archive e.g. to $HOME/toolkits
3. Configure the SPL compiler to find the toolkit root directory. Use one of the following methods:

• Set the STREAMS_SPLPATH environment variable to the root directory of a toolkit or multiple toolkits (with : as a separator). For example:

      export STREAMS_SPLPATH=$HOME/toolkits/com.ibm.streamsx.math

• Specify the -t or --spl-path command parameter when you run the sc command. For example:

      sc -t $HOME/toolkits/com.ibm.streamsx.math -M MyMain

where MyMain is the name of the SPL main composite. Note: These command parameters override the STREAMS_SPLPATH environment variable.

• Add the toolkit location in InfoSphere Streams Studio.

4. Develop your application. To avoid the need to fully qualify the operators, add a use directive in your application.

• For example, you can add the following clause in your SPL source file: use com.ibm.streamsx.math::*;

5. Build your application. You can use the sc command or Streams Studio.
6. Start the InfoSphere Streams instance.
7. Run the application. You can submit the application as a job by using the streamtool submitjob command or by using Streams Studio.