https://github.com/ibmstreams/streamsx.math

(Incubation) Mathematics and statistics toolkit.
https://github.com/ibmstreams/streamsx.math

ibm-streams mathematics stream-processing toolkit

Last synced: about 1 month ago
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(Incubation) Mathematics and statistics toolkit.

• Host: GitHub
• URL: https://github.com/ibmstreams/streamsx.math
• Owner: IBMStreams
• License: apache-2.0
• Created: 2014-05-16T17:31:02.000Z (over 10 years ago)
• Default Branch: develop
• Last Pushed: 2020-08-17T09:38:28.000Z (over 4 years ago)
• Last Synced: 2024-04-14T20:02:43.331Z (9 months ago)
• Topics: ibm-streams, mathematics, stream-processing, toolkit
• Language: Shell
• Homepage: https://ibmstreams.github.io/streamsx.math
• Size: 1010 KB
• Stars: 1
• Watchers: 13
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# 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](com.ibm.streamsx.math/CHANGELOG.md)

## How to use this toolkit

1. Download the latest release archive streamsx.math-X.Y.Z-el7-amd64--.tgz from: [releases](https://github.com/IBMStreams/streamsx.math/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.