kmath/kmath-nd4j
Alexander Nozik a526dcc16b Merge branch 'dev' into dev-0.4
# Conflicts:
#	kmath-core/src/commonMain/kotlin/space/kscience/kmath/linear/MatrixFeatures.kt
#	kmath-core/src/commonMain/kotlin/space/kscience/kmath/misc/Featured.kt
#	kmath-ejml/src/main/kotlin/space/kscience/kmath/ejml/_generated.kt
#	kmath-memory/src/commonMain/kotlin/space/kscience/kmath/memory/MemoryBuffer.kt
#	kmath-optimization/src/commonMain/kotlin/space/kscience/kmath/optimization/OptimizationBuilder.kt
2024-02-07 21:53:49 +03:00
..
docs Improve Dokka configuration 2021-03-22 20:41:18 +07:00
src Merge branch 'dev' into dev-0.4 2024-02-07 21:53:49 +03:00
build.gradle.kts Refactor for build tools 0.13.0 2022-09-04 20:59:30 +03:00
README.md Move annotations to base package. Fix series 2023-04-07 19:55:34 +03:00

Module kmath-nd4j

ND4J based implementations of KMath abstractions.

Artifact:

The Maven coordinates of this project are space.kscience:kmath-nd4j:0.4.0-dev-1.

Gradle Groovy:

repositories {
    maven { url 'https://repo.kotlin.link' }
    mavenCentral()
}

dependencies {
    implementation 'space.kscience:kmath-nd4j:0.4.0-dev-1'
}

Gradle Kotlin DSL:

repositories {
    maven("https://repo.kotlin.link")
    mavenCentral()
}

dependencies {
    implementation("space.kscience:kmath-nd4j:0.4.0-dev-1")
}

Examples

NDStructure wrapper for INDArray:

import org.nd4j.linalg.factory.*
import scientifik.kmath.nd4j.*
import scientifik.kmath.structures.*

val array = Nd4j.ones(2, 2).asDoubleStructure()
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:

import org.nd4j.linalg.factory.*
import scientifik.kmath.nd4j.*
import scientifik.kmath.operations.*

val field = DoubleNd4jArrayField(intArrayOf(2, 2))
val array = Nd4j.rand(2, 2).asDoubleStructure()

val res = field {
    (25.0 / array + 20) * 4
}

println(res.ndArray)
// [[  250.6449,  428.5840], 
//  [  269.7913,  202.2077]]

Contributed by Iaroslav Postovalov.