init research

2026-02-08 11:20:43 -10:00
commit bdf064f54d
3041 changed files with 1592200 additions and 0 deletions
@@ -0,0 +1,27 @@
+// FIR_DUMP
+
+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("name", "age", "city", "weight")(
+        "Alice", 15, "London", 54,
+        "Bob", 45, "Dubai", 87,
+        "Charlie", 20, "Moscow", null,
+        "Charlie", 40, "Milan", null,
+        "Bob", 30, "Tokyo", 68,
+        "Alice", 20, null, 55,
+        "Charlie", 30, "Moscow", 90,
+    )
+
+    val sorted1 = df.reorderColumnsByName()
+
+    val sorted2 = df.groupBy { city }.into("a").reorderColumnsByName()
+
+    val sorted3 = df.groupBy { city }.into("a").reorderColumnsByName(desc = true, atAnyDepth = false)
+
+    val sorted4 = df.groupBy { city }.into("a").reorderColumnsByName(desc = true, atAnyDepth = true)
+    return "OK"
+}