[Doc] add doc for DGLCSVDataset

[Doc] add doc for DGLCSVDataset

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

@@ -18,6 +18,10 @@ Base Dataset Class
 .. autoclass:: DGLDataset
     :members: download, save, load, process, has_cache, __getitem__, __len__
 
+CSV Dataset Class
+-----------------
+
+.. autoclass:: CSVDataset
 
 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

@@ -6,8 +6,7 @@ from ..base import DGLError
 
 
 class CSVDataset(DGLDataset):
-    """ This class aims to parse data from CSV files, construct DGLGraph
-        and behaves as a DGLDataset.
+    """Dataset class that loads and parses graph data from CSV files.
 
     Parameters
     ----------
@@ -51,7 +50,9 @@ class CSVDataset(DGLDataset):
         any available graph-level data such as graph-level feature, labels.
 
     Examples
-    [TODO]: link to a detailed web page.
+    --------
+    Please refer to :ref:`guide-data-pipeline-loadcsv`.
+
     """
     META_YAML_NAME = 'meta.yaml'
 

tutorials/blitz/6_load_data.py

@@ -222,6 +222,16 @@ dataset = SyntheticDataset()
 graph, label = dataset[0]
 print(graph, label)
 
+######################################################################
+# Creating Dataset from CSV via :class:`~dgl.data.CSVDataset`
+# ------------------------------------------------------------
+#
+# The previous examples describe how to create a dataset from CSV files
+# step-by-step. DGL also provides a utility class :class:`~dgl.data.CSVDataset`
+# for reading and parsing data from CSV files. See :ref:`guide-data-pipeline-loadcsv`
+# for more details.
+#
+
 
 # Thumbnail credits: (Un)common Use Cases for Graph Databases, Michal Bachman
 # sphinx_gallery_thumbnail_path = '_static/blitz_6_load_data.png'