mengw15 commented on code in PR #4406:
URL: https://github.com/apache/texera/pull/4406#discussion_r3113303815


##########
common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/ecdfPlot/ECDFPlotOpDesc.scala:
##########
@@ -0,0 +1,187 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.texera.amber.operator.visualization.ecdfPlot
+
+import com.fasterxml.jackson.annotation.{JsonProperty, JsonPropertyDescription}
+import com.kjetland.jackson.jsonSchema.annotations.{JsonSchemaInject, 
JsonSchemaTitle}
+import org.apache.texera.amber.core.tuple.{AttributeType, Schema}
+import org.apache.texera.amber.core.workflow.OutputPort.OutputMode
+import org.apache.texera.amber.core.workflow.{InputPort, OutputPort, 
PortIdentity}
+import org.apache.texera.amber.operator.PythonOperatorDescriptor
+import 
org.apache.texera.amber.operator.metadata.annotations.AutofillAttributeName
+import org.apache.texera.amber.operator.metadata.{OperatorGroupConstants, 
OperatorInfo}
+import org.apache.texera.amber.pybuilder.PyStringTypes.EncodableString
+import org.apache.texera.amber.pybuilder.PythonTemplateBuilder
+import 
org.apache.texera.amber.pybuilder.PythonTemplateBuilder.PythonTemplateBuilderStringContext
+
+import javax.validation.constraints.NotNull
+
+@JsonSchemaInject(
+  json = 
"""{"attributeTypeRules":{"valueColumn":{"enum":["integer","long","double"]}}}"""
+)
+class ECDFPlotOpDesc extends PythonOperatorDescriptor {
+
+  @JsonProperty(required = true)
+  @JsonSchemaTitle("Value Column")
+  @JsonPropertyDescription("Numeric column used to compute the empirical 
cumulative distribution.")
+  @AutofillAttributeName
+  @NotNull(message = "Value column cannot be empty")
+  var valueColumn: EncodableString = ""
+
+  @JsonProperty(required = false)
+  @JsonSchemaTitle("Color Column")
+  @JsonPropertyDescription("Optional column for coloring ECDF lines by group.")
+  @AutofillAttributeName
+  var colorColumn: EncodableString = ""
+
+  @JsonProperty(required = false)
+  @JsonSchemaTitle("Separate By Column")
+  @JsonPropertyDescription("Optional column for splitting ECDF plots into 
subplots.")
+  @AutofillAttributeName
+  var separateBy: EncodableString = ""
+
+  @JsonProperty(required = false, defaultValue = "probability")
+  @JsonSchemaTitle("Y Axis Mode")
+  @JsonPropertyDescription("Display cumulative probability, raw count, or 
cumulative sum.")
+  @JsonSchemaInject(
+    json = """{ "enum": ["probability", "count", "sum"], "default": 
"probability" }"""
+  )
+  var yAxisMode: String = "probability"
+
+  @JsonProperty(required = false, defaultValue = "standard")
+  @JsonSchemaTitle("CDF Mode")
+  @JsonPropertyDescription(
+    "'standard' shows P(X ≤ x), 'reversed' shows P(X ≥ x), " +
+      "'complementary' shows 1 - P(X ≤ x)."
+  )
+  @JsonSchemaInject(
+    json = """{ "enum": ["standard", "reversed", "complementary"], "default": 
"standard" }"""
+  )
+  var cdfMode: EncodableString = "standard"
+
+  @JsonProperty(required = false, defaultValue = "vertical")
+  @JsonSchemaTitle("Orientation")
+  @JsonPropertyDescription("Plot ECDF vertically or horizontally.")
+  @JsonSchemaInject(json = """{ "enum": ["vertical", "horizontal"], "default": 
"vertical" }""")
+  var orientation: EncodableString = "vertical"
+
+  @JsonProperty(required = false, defaultValue = "false")
+  @JsonSchemaTitle("Show Markers")
+  @JsonPropertyDescription("Display sample markers on the ECDF line.")
+  var showMarkers: Boolean = false
+
+  @JsonProperty(required = false, defaultValue = "")
+  @JsonSchemaTitle("Marginal Plot")
+  @JsonPropertyDescription("Optional marginal plot to display alongside the 
ECDF.")
+  @JsonSchemaInject(json = """{ "enum": ["", "histogram", "rug"], "default": 
"" }""")

Review Comment:
   this "" here is on purpose or is this a typo? 



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