Added Pandas Drop Duplicates node. Fixed Pandas Drop NA node to output a DataFrame instead of legacy JSON string.

docs/reference/node_reference.md

@@ -36,6 +36,7 @@
 ## Data cleansing
 | Node | Description |
 | --- | --- |
+| [Pandas Drop Duplicates](pandas_drop_duplicates.md) | Drops duplicate rows from a Pandas DataFrame. |
 | [Pandas Drop NA](pandas_dropna.md) | Drops missing values from a pandas DataFrame. |
 | [Pandas Is NA](pandas_isna.md) | Checks a pandas DataFrame for missing values. |
 | [Pandas Replace](pandas_replace.md) | Replaces part or all of a string in each DataFrame cell with a specified string using a wildcard for matching.  If you want to remove some characters, then leave the replace_string field blank. |

docs/reference/pandas_drop_duplicates.md

@@ -0,0 +1,17 @@
+# Pandas Drop Duplicates
+Drops duplicate rows from a Pandas DataFrame.
+
+## Input
+| Name | Data type |
+|---|---|
+| dataframe | DataFrame |
+
+## Output
+| Data type |
+|---|
+| DataFrame |
+
+<HR>
+Category: Data cleansing
+
+ComfyUI Data Analysis Node Reference. © 2025 Hide Inada (HowToSD.com). All rights reserved.