FabricDataFrames dynamically expose semantic functions based on logic defined by each function. For example, the is_holiday function shows up in the autocomplete suggestions when you're working on a FabricDataFrame containing both a datetime column and a country column.
Each semantic function uses information about the data types, metadata (such as Power BI data categories), and the data in a FabricDataFrame or FabricSeries to determine its relevance to the particular data on which you're working.
Semantic functions are automatically discovered when annotated with the @semantic_function decorator. You can think of semantic functions as being similar to C# extension methods applied to the popular DataFrame concept.
```python
from sempy.fabric import FabricDataFrame
df = FabricDataFrame(
{"country": ["US", "AT"], "date": ["2023-01-06", "2023-01-06"]},
column_metadata={"country": {"data_category": "Country"}},
)
df["date"] = pd.to_datetime(df["date"])
holiday_series = df.is_holiday(date_col="date", country_col="country")
```
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"description": "FabricDataFrames dynamically expose semantic functions based on logic defined by each function. For example, the is_holiday function shows up in the autocomplete suggestions when you're working on a FabricDataFrame containing both a datetime column and a country column.\n\nEach semantic function uses information about the data types, metadata (such as Power BI data categories), and the data in a FabricDataFrame or FabricSeries to determine its relevance to the particular data on which you're working.\n\nSemantic functions are automatically discovered when annotated with the @semantic_function decorator. You can think of semantic functions as being similar to C# extension methods applied to the popular DataFrame concept.\n\n```python\nfrom sempy.fabric import FabricDataFrame\n\ndf = FabricDataFrame(\n {\"country\": [\"US\", \"AT\"], \"date\": [\"2023-01-06\", \"2023-01-06\"]},\n column_metadata={\"country\": {\"data_category\": \"Country\"}},\n)\n\ndf[\"date\"] = pd.to_datetime(df[\"date\"])\n\nholiday_series = df.is_holiday(date_col=\"date\", country_col=\"country\")\n```\n\n\n",
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