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From rows to data frame #1463

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From rows to data frame #1463

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50796d5
adding from_rows_to_data_frame function
CarloMariaProietti Sep 21, 2025
2ad1b89
adding test
CarloMariaProietti Sep 22, 2025
5355ac5
pulling master
CarloMariaProietti Sep 24, 2025
fa40564
cleaning test
CarloMariaProietti Sep 29, 2025
dbd4476
fix name of test
CarloMariaProietti Oct 7, 2025
a5558a1
pull master
CarloMariaProietti Oct 7, 2025
84a2e31
apiDump
CarloMariaProietti Oct 7, 2025
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1 change: 1 addition & 0 deletions core/api/core.api
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Original file line number Diff line number Diff line change
Expand Up @@ -4467,6 +4467,7 @@ public final class org/jetbrains/kotlinx/dataframe/api/ToDataFrameKt {
public static final fun toDataFrameColumnPathAnyNullable (Ljava/lang/Iterable;)Lorg/jetbrains/kotlinx/dataframe/DataFrame;
public static final fun toDataFrameColumnPathAnyNullable (Ljava/util/Map;)Lorg/jetbrains/kotlinx/dataframe/DataFrame;
public static final fun toDataFrameFromPairs (Ljava/lang/Iterable;)Lorg/jetbrains/kotlinx/dataframe/DataFrame;
public static final fun toDataFrameMapStringAnyNullable (Ljava/lang/Iterable;)Lorg/jetbrains/kotlinx/dataframe/DataFrame;
public static final fun toDataFramePairColumnPathAnyCol (Ljava/lang/Iterable;)Lorg/jetbrains/kotlinx/dataframe/DataFrame;
public static final fun toDataFrameT (Ljava/lang/Iterable;)Lorg/jetbrains/kotlinx/dataframe/DataFrame;
}
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3 changes: 3 additions & 0 deletions core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/toDataFrame.kt
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Expand Up @@ -72,6 +72,9 @@ public fun <T> Iterable<DataRow<T>>.toDataFrame(): DataFrame<T> {
}
}

@JvmName("toDataFrameMapStringAnyNullable")
public fun Iterable<Map<String, *>>.toDataFrame(): DataFrame<*> = map { it.toDataRow() }.toDataFrame()

@JvmName("toDataFrameAnyColumn")
public fun Iterable<AnyBaseCol>.toDataFrame(): AnyFrame = dataFrameOf(this)

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10 changes: 10 additions & 0 deletions core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/api/toDataFrame.kt
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Expand Up @@ -425,6 +425,16 @@ class CreateDataFrameTests {
df["value"].toList() shouldBe maps
}

@Test
fun `should convert iterables of maps representing rows to DataFrame with value columns`() {
val maps: Iterable<Map<String, *>> = listOf(mapOf("a" to 1, "b" to true), mapOf("c" to 2, "d" to false),)
val df = maps.toDataFrame()
df["a"][0] shouldBe 1
df["b"][0] shouldBe true
df["c"][1] shouldBe 2
df["d"][1] shouldBe false
}

class NoPublicPropsClass(private val a: Int, private val b: String)

@Test
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