44 lines
899 B
Markdown
44 lines
899 B
Markdown
|
# ND4J NDStructure implementation (`kmath-nd4j`)
|
||
|
|
|
||
|
|
This subproject implements the following features:
|
||
|
|
|
||
|
|
${features}
|
||
|
|
|
||
|
|
${artifact}
|
||
|
|
|
||
|
|
## Examples
|
||
|
|
|
||
|
|
NDStructure wrapper for INDArray:
|
||
|
|
|
||
|
|
```kotlin
|
||
|
|
import org.nd4j.linalg.factory.*
|
||
|
|
import scientifik.kmath.nd4j.*
|
||
|
|
import scientifik.kmath.structures.*
|
||
|
|
|
||
|
|
val array = Nd4j.ones(2, 2).asRealStructure()
|
||
|
|
println(array[0, 0]) // 1.0
|
||
|
|
array[intArrayOf(0, 0)] = 24.0
|
||
|
|
println(array[0, 0]) // 24.0
|
||
|
|
```
|
||
|
|
|
||
|
|
Fast element-wise and in-place arithmetics for INDArray:
|
||
|
|
|
||
|
|
```kotlin
|
||
|
|
import org.nd4j.linalg.factory.*
|
||
|
|
import scientifik.kmath.nd4j.*
|
||
|
|
import scientifik.kmath.operations.*
|
||
|
|
|
||
|
|
val field = RealNd4jArrayField(intArrayOf(2, 2))
|
||
|
|
val array = Nd4j.rand(2, 2).asRealStructure()
|
||
|
|
|
||
|
|
val res = field {
|
||
|
|
(25.0 / array + 20) * 4
|
||
|
|
}
|
||
|
|
|
||
|
|
println(res.ndArray)
|
||
|
|
// [[ 250.6449, 428.5840],
|
||
|
|
// [ 269.7913, 202.2077]]
|
||
|
|
```
|
||
|
|
|
||
|
|
Contributed by [Iaroslav Postovalov](https://github.com/CommanderTvis).
|