init research

2026-02-08 11:20:43 -10:00
commit bdf064f54d
3041 changed files with 1592200 additions and 0 deletions
@@ -0,0 +1,25 @@
+import org.jetbrains.kotlinx.dataframe.*
+import org.jetbrains.kotlinx.dataframe.annotations.*
+import org.jetbrains.kotlinx.dataframe.api.*
+import org.jetbrains.kotlinx.dataframe.io.*
+
+fun box(): String {
+    val df = dataFrameOf("a", "b", "c", "d")(1, 2, 3, 4)
+    val grouped = df
+        .group { a and b }.into("e")
+        .group { e and c }.into("f")
+
+    grouped.flatten().compareSchemas(strict = true)
+    val flattened = grouped.flatten { f.e }
+    flattened.compareSchemas(strict = true)
+    flattened.ungroup { f }.compareSchemas(strict = true)
+
+    grouped.flatten(keepParentNameForColumns = true) { f.e }.compareSchemas(strict = true)
+
+    grouped.flatten { f.e and f }.compareSchemas(strict = true)
+    return "OK"
+}
+
+
+
+