https://github.com/waikato-datamining/android-matrix-algorithms

Java library to be used on Android, simply applies precomputed matrices etc.
https://github.com/waikato-datamining/android-matrix-algorithms

android java matrix-algorithms pls savitzky-golay

Last synced: about 2 months ago
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Java library to be used on Android, simply applies precomputed matrices etc.

• Host: GitHub
• URL: https://github.com/waikato-datamining/android-matrix-algorithms
• Owner: waikato-datamining
• License: apache-2.0
• Created: 2019-08-19T23:05:42.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2019-11-01T01:22:50.000Z (about 5 years ago)
• Last Synced: 2023-07-05T16:41:52.898Z (over 1 year ago)
• Topics: android, java, matrix-algorithms, pls, savitzky-golay
• Language: Java
• Homepage:
• Size: 55.7 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# android-matrix-algorithms

Java library to be used on Android, simply applies precomputed matrices etc.

as generated by [py-matrix-algorithms](https://github.com/waikato-datamining/py-matrix-algorithms).

## Algorithms

* [Simple PLS (SIMPLS)](http://www.statsoft.com/textbook/partial-least-squares/#SIMPLS)

* [Savitzky-Golay](https://en.wikipedia.org/wiki/Savitzky%E2%80%93Golay_filter)

* Standardize

* Log

## Usage

Use the following code to load the preprocessing map from the serialized file

`map.bin` (with `one` and `two` named pipelines) and apply it to data (processing

the same data with both pre-processing pipelines):

```java

import com.github.waikatodatamining.androidmatrix.PreprocessingMap;

import java.io.FileInputStream;

import java.utils.Map;

import java.utils.HashMap;

 

PreprocessingMap preprocessingMap;

preprocessingMap = new PreprocessingMap(new FileInputStream("map.bin"));

double[] data = ...;

Map map = new HashMap<>();

map.put("one", data);

map.put("two", data);

// for ordered application

double[][] processedOrdered = preprocessingMap.applyOrdered(data);

 

// for mapped application

Map processedMapped = preprocessingMap.apply(data);

```

## Android

See the following StackOverflow post for how to wrap a `java.nio.ByteBuffer` in

a `java.io.InputStream`:

https://stackoverflow.com/a/6603018/4698227