ColumnarData returns nullable column
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@ -29,6 +29,7 @@
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- Separated benchmarks and examples
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- Rewritten EJML module without ejml-simple
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- Stability of kmath-ast and kmath-kotilngrad promoted to EXPERIMENTAL.
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- ColumnarData returns nullable column
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### Deprecated
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@ -19,7 +19,7 @@ import space.kscience.kmath.structures.Buffer
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public interface ColumnarData<out T> {
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public val size: Int
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public operator fun get(symbol: Symbol): Buffer<T>
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public operator fun get(symbol: Symbol): Buffer<T>?
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}
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/**
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@ -27,10 +27,10 @@ public interface XYColumnarData<T, out X : T, out Y : T> : ColumnarData<T> {
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*/
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public val y: Buffer<Y>
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override fun get(symbol: Symbol): Buffer<T> = when (symbol) {
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override fun get(symbol: Symbol): Buffer<T>? = when (symbol) {
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Symbol.x -> x
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Symbol.y -> y
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else -> error("A column for symbol $symbol not found")
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else -> null
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}
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}
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@ -17,10 +17,10 @@ import space.kscience.kmath.structures.Buffer
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public interface XYZColumnarData<T, out X : T, out Y : T, out Z : T> : XYColumnarData<T, X, Y> {
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public val z: Buffer<Z>
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override fun get(symbol: Symbol): Buffer<T> = when (symbol) {
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override fun get(symbol: Symbol): Buffer<T>? = when (symbol) {
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Symbol.x -> x
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Symbol.y -> y
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Symbol.z -> z
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else -> error("A column for symbol $symbol not found")
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else -> null
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}
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}
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