Merge pull request #1433 from CarloMariaProietti/from_map_to_data_row

adding from_map_to_data_row function

Author: Jolanrensen

core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/typeConversions.kt

@@ -20,8 +20,11 @@ import org.jetbrains.kotlinx.dataframe.columns.ColumnSet
 import org.jetbrains.kotlinx.dataframe.columns.FrameColumn
 import org.jetbrains.kotlinx.dataframe.columns.SingleColumn
 import org.jetbrains.kotlinx.dataframe.columns.ValueColumn
+import org.jetbrains.kotlinx.dataframe.documentation.DocumentationUrls
+import org.jetbrains.kotlinx.dataframe.impl.DataRowImpl
 import org.jetbrains.kotlinx.dataframe.impl.GroupByImpl
 import org.jetbrains.kotlinx.dataframe.impl.anyNull
+import org.jetbrains.kotlinx.dataframe.impl.api.convertToDataFrame
 import org.jetbrains.kotlinx.dataframe.impl.asList
 import org.jetbrains.kotlinx.dataframe.impl.columnName
 import org.jetbrains.kotlinx.dataframe.impl.columns.ColumnAccessorImpl
@@ -403,6 +406,11 @@ public fun <T> DataRow<T>.toDataFrame(): DataFrame<T> = owner[index..index]
 
 public fun AnyRow.toMap(): Map<String, Any?> = df().columns().associate { it.name() to it[index] }
 
+public fun Map<String, Any?>.toDataRow(): DataRow<*> {
+    val df = mapValues { listOf(it.value) }.toDataFrame()
+    return DataRowImpl(0, df)
+}
+
 // endregion
 
 // region Array

core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/testSets/person/DataRowTests.kt

@@ -21,6 +21,7 @@ import org.jetbrains.kotlinx.dataframe.api.relative
 import org.jetbrains.kotlinx.dataframe.api.rowMean
 import org.jetbrains.kotlinx.dataframe.api.rowStd
 import org.jetbrains.kotlinx.dataframe.api.rowSum
+import org.jetbrains.kotlinx.dataframe.api.toDataRow
 import org.jetbrains.kotlinx.dataframe.api.toDouble
 import org.jetbrains.kotlinx.dataframe.api.transposeTo
 import org.jetbrains.kotlinx.dataframe.api.update
@@ -118,4 +119,12 @@ class DataRowTests : BaseTest() {
         typed[1].relative(-2..2) shouldBe typed[0..3]
         typed[1].relative(listOf(2, -1, -3, 0)) shouldBe typed[3, 0, 1]
     }
+
+    @Test
+    fun toDataRow() {
+        val map = mapOf<String, Any?>("a" to 1, "b" to true)
+        val row = map.toDataRow()
+        row["a"] shouldBe 1
+        row["b"] shouldBe true
+    }
 }