init research

dataframe/plugins/kotlin-dataframe/testData/box/csDsl/drop.kt

@@ -0,0 +1,27 @@
+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 {
+    compareSchemas(
+        df.select { name.lastName },
+        df.select { name.dropCols(1) },
+    )
+
+    compareSchemas(
+        df.select { name.firstName },
+        df.select { name.dropLastCols(1) },
+    )
+
+    compareSchemas(
+        df.select { weight and isHappy },
+        df.select { drop(3) },
+    )
+
+    compareSchemas(
+        df.select { name and age },
+        df.select { dropLast(3) },
+    )
+    return "OK"
+}