18 lines
486 B
Kotlin
Vendored
18 lines
486 B
Kotlin
Vendored
import org.jetbrains.kotlinx.dataframe.*
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import org.jetbrains.kotlinx.dataframe.annotations.*
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import org.jetbrains.kotlinx.dataframe.api.*
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import org.jetbrains.kotlinx.dataframe.io.*
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@DataSchema
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data class Record(val a: String, val b: Int)
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fun box(): String {
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val df = List(10) { Record(it.toString(), it) }.let { dataFrameOf(*it.toTypedArray()) }
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val group = df.group { a and b }.into("c")
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val df1 = group.c.add("d") { 1 }
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df1.a
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df1.b
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df1.d
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return "OK"
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}
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