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Added Pandas Iloc Row Series node.

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HowToSD
2025-02-15 23:43:42 -08:00
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@@ -23,6 +23,7 @@ You can right-click, select **Add Node**, go to **Data Analysis**, and look for
| **Pandas Index** | Extract row labels (index) |
| **Pandas Select Columns** | Select specific columns from a DataFrame |
| **Pandas Select Rows** | Filter rows based on conditions |
| **Pandas Iloc Row Series** | Select a row by row integer position |
| **Pandas Loc Row Series** | Select a row by row label (index) |
| **Pandas Loc Cell Str** | Select a cell by row label (index) and column label (index) |
| **Pandas Join** | Join two DataFrames |
@@ -63,14 +64,23 @@ Use **Pandas Columns** and **Pandas Index** nodes. As these nodes output JSON-s
![Pandas Create and Pandas Create With Index](images/create.png)
## Selecting columns and rows
Use **Pandas Select Columns** for selecting columns, **Pandas Select Rows** to select rows by a filter condition.
Use **Pandas Select Columns** for selecting columns.
For rows, there are multiple options.
Use **Pandas Select Rows** to select rows by a filter condition.
![Pandas select subset](images/subset.jpg)
You can use **Pandas Loc Row Series** to select a row by row label (index). This node returns a JSON-serialized Series object. Data type of the labels needs to be specified as shown below:
You can use **Pandas Loc Row Series** to select a row by row label (index), or you can use **Pandas Iloc Row Series** to select a row by row integer position. Both nodes returns a JSON-serialized Series object.
For **Pandas Loc Row Series**, data type of the labels needs to be specified as shown below:
![Pandas Loc Row Series](images/loc_row_series.png)
For **Pandas Iloc Row Series**, you only need to specify the row integer position:
![Pandas Iloc Row Series](images/iloc_row_series.png)
Note that in Pandas, integer position is an equivalent of an index in other software,
while "index" means a unique label assigned to each row or column. See [pandas.DataFrame.iloc.html](https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.iloc.html).
## Selecting a cell by row label (index) and column label (index)
Use **Pandas Loc Cell Str** for selecting a cell by row label (index) and column label (index). Data type of the labels needs to be specified as shown below: