[Doc] add doc for DGLCSVDataset

docs/source/api/python/dgl.data.rst

@@ -18,6 +18,7 @@ Base Dataset Class
 .. autoclass:: DGLDataset
     :members: download, save, load, process, has_cache, __getitem__, __len__
 
+.. autoclass:: DGLCSVDataset
 
 Node Prediction Datasets
 ---------------------------------------

docs/source/guide/data.rst

@@ -23,6 +23,7 @@ shows how to implement each component of it.
 * :ref:`guide-data-pipeline-process`
 * :ref:`guide-data-pipeline-savenload`
 * :ref:`guide-data-pipeline-loadogb`
+* :ref:`guide-data-pipeline-loadcsv`
 
 .. toctree::
     :maxdepth: 1
@@ -33,4 +34,5 @@ shows how to implement each component of it.
     data-download
     data-process
     data-savenload
-    data-loadogb
+    data-loadogb
\ No newline at end of file
+    data-loadcsv
\ No newline at end of file

python/dgl/data/csv_dataset.py

@@ -51,7 +51,13 @@ class CSVDataset(DGLDataset):
         any available graph-level data such as graph-level feature, labels.
 
     Examples
-    [TODO]: link to a detailed web page.
+    --------
+    ``meta.yaml`` and CSV files are under ``csv_dir``.
+    
+    >>> csv_dataset = dgl.data.DGLCSVDataset(csv_dir)
+
+    See more details in :ref:`guide-data-pipeline-loadcsv`.
+
     """
     META_YAML_NAME = 'meta.yaml'