Teradata Package for Python Function Reference | 17.10 - set_link - Teradata Package for Python - Look here for syntax, methods and examples for the functions included in the Teradata Package for Python.
Teradata® Package for Python Function Reference
- Product
- Teradata Package for Python
- Release Number
- 17.10
- Published
- April 2022
- Language
- English (United States)
- Last Update
- 2022-08-19
- lifecycle
- previous
- Product Category
- Teradata Vantage
- teradataml.geospatial.geodataframecolumn.GeoDataFrameColumn.set_link = set_link(self, index, link_id)
- DESCRIPTION:
Set the link ID of a specified point in a GeoSequence.
PARAMETERS:
index:
Required Argument.
Specifies the index of the point in the GeoSequence, where the index of the
first point is 1.
Types: int, str, ColumnExpression
link_id:
Required Argument.
Specifies the new link ID of the specified point in the GeoSequence. The data type
of linkID is DECIMAL(18,0).
Types: float
SUPPORTED GEOMETRY TYPES:
GeoSequence
RAISES:
TypeError, ValueError, TeradataMlException
RETURNS:
GeoDataFrameColumn
EXAMPLES:
from teradataml import GeoDataFrame, load_example_data
from teradataml import Point, LineString, Polygon, GeometryCollection
# Load example data.
load_example_data("geodataframe", "sample_shapes")
# Create a GeoDataFrame.
geodf = GeoDataFrame("sample_shapes")
print(geodf)
# Example 1: Set the link ID for the point at the 1st index in geometries in column 'geosequence'.
# Let's select only few columns from GeoDataFrame.
geoseq = geodf.select(["skey", "geosequence"])[geodf.skey.isin([1001, 1002])]
geoseq.assign(res = geoseq.geosequence.set_link(index=1, link_id=20.2))