update group by doc

Author: risenW

Diff for: SUMMARY.md

@@ -203,7 +203,7 @@
     * [Line Charts](api-reference/plotting/line-charts.md)
     * [Customizing your plots](api-reference/plotting/configuring-your-plots.md)
   * [Groupby](api-reference/groupby/README.md)
-    * [Groupby.get\_groups](api-reference/groupby/groupby.get\_groups.md)
+    * [Groupby.getGroups](api-reference/groupby/groupby.getGroups.md)
     * [Groupby.col](api-reference/groupby/groupby.col.md)
     * [Groupby.max](api-reference/groupby/groupby.max.md)
     * [Groupby.min](api-reference/groupby/groupby.min.md)

Diff for: api-reference/groupby/README.md

@@ -8,7 +8,7 @@ description: 'GroupBy objects are returned by groupby calls: danfo.DataFrame.gro
 
 |  |  |
 | :--- | :--- |
-| [`GroupBy.get_group`](groupby.get_groups.md) | Construct DataFrame from group with provided name. |
+| [`GroupBy.get_group`](groupby.getGroup.md) | Construct DataFrame from group with provided name. |
 
 ### Function application
 

Diff for: api-reference/groupby/groupby.getGroup.md

@@ -74,7 +74,7 @@ grp.getGroup(["bar"]).print()
 ╚═══╧═══════════════════╧═══════════════════╧═══════════════════╧═══════════════════╝
 ```
 
-Group dataframe by two columns and obtain their groups. Since the dataframe is grouped by two columns we most specify two keys in the get\_groups belonging to these two columns
+Group dataframe by two columns and obtain their groups. Since the dataframe is grouped by two columns we most specify two keys in the getGroups belonging to these two columns
 
 {% tabs %}
 {% tab title="Node" %}
@@ -102,7 +102,7 @@ grp.getGroup(["bar","one"]).print()
 {% endtabs %}
 
 ```text
-//get_groups(["foo","one"]
+//getGroup(["foo","one"]
 
 
  Shape: (2,4) 

Diff for: api-reference/groupby/groupby.get_groups.md

@@ -2,9 +2,9 @@
 description: Obtain the data for each element of the groupby column
 ---
 
-# Groupby.get\_groups
+# Groupby.getGroups
 
-> danfo.Groupby.get\_groups(key) \[[source](https://github.com/opensource9ja/danfojs/blob/master/danfojs/src/core/groupby.js#L313)]
+> danfo.Groupby.getGroups(key) \[[source](https://github.com/opensource9ja/danfojs/blob/master/danfojs/src/core/groupby.js#L313)]
 
 | Parameters | Type  | Description                   | default |
 | ---------- | ----- | ----------------------------- | ------- |
@@ -34,9 +34,9 @@ let df = new dfd.DataFrame(data)
 
 let grp = df.groupby(["A"])
 
-grp.get_groups(["foo"]).print()
+grp.getGroup(["foo"]).print()
 
-grp.get_groups(["bar"]).print()
+grp.getGroup(["bar"]).print()
 ```
 {% endtab %}
 {% endtabs %}
@@ -74,7 +74,7 @@ grp.get_groups(["bar"]).print()
 ╚═══╧═══════════════════╧═══════════════════╧═══════════════════╧═══════════════════╝
 ```
 
-Group dataframe by two columns and obtain their groups. Since the dataframe is grouped by two columns we most specify two keys in the get\_groups belonging to these two columns
+Group dataframe by two columns and obtain their groups. Since the dataframe is grouped by two columns we most specify two keys in the getGroups belonging to these two columns
 
 {% tabs %}
 {% tab title="Node" %}
@@ -94,15 +94,15 @@ let df = new dfd.DataFrame(data)
 
 let grp = df.groupby(["A","B"])
 
-grp.get_groups(["foo","one"]).print()
+grp.getGroup(["foo","one"]).print()
 
-grp.get_groups(["bar","one"]).print()
+grp.getGroup(["bar","one"]).print()
 ```
 {% endtab %}
 {% endtabs %}
 
 ```
-//get_groups(["foo","one"]
+//getGroup(["foo","one"]
 
 
  Shape: (2,4) 
@@ -115,7 +115,7 @@ grp.get_groups(["bar","one"]).print()
 ║ 1 │ foo               │ one               │ 6                 │ 7                 ║
 ╚═══╧═══════════════════╧═══════════════════╧═══════════════════╧═══════════════════╝
 
-//get_groups(["bar","one"])
+//getGroup(["bar","one"])
 
 
  Shape: (1,4) 

Diff for: getting-started.md

@@ -2030,9 +2030,9 @@ let df = new dfd.DataFrame(data)
 
 let grp = df.groupby(["A"])
 
-grp.get_groups(["foo"]).print()
+grp.getGroup(["foo"]).print()
 
-grp.get_groups(["bar"]).print()
+grp.getGroup(["bar"]).print()
 ```
 
 ```