Pandas DataFrame first() Method
Example
Return the rows for the first 5 days:
import pandas as pd
jan = pd.date_range(start='2021-01-01',
end='2021-01-31')
data = {
"registered": [5, 4, 3, 4, 3, 5,
1, 6, 1, 9, 5, 3, 7, 2, 8, 4, 4, 6, 4, 3, 2, 5, 3, 4, 2, 6, 8, 5, 3, 4, 5]
}
df = pd.DataFrame(data, index=jan)
print(df.first('5D'))
Try it Yourself »
Definition and Usage
The first() method returns the first n rows,
based on the specified value.
The index have to be dates for this method to work as expected.
Syntax
dataframe.first(offset)
Parameters
| Parameter | Description |
|---|---|
| offset | Required. A String or a Date offset. Specifies the dates to return |
Return Value
A DataFrame, with the specified rows.
