otp.Source.head (jupyter)

Source.head(n=5, **kwargs)

Executes the query and returns first n ticks as a pandas dataframe.

It is useful in the Jupyter case when you want to observe first n values.

Parameters

• n (int, default=5) – number of ticks to return

• kwargs – parameters will be passed to otp.run

• self (Source) –

Return type

DataFrame

Examples

>>> data = otp.Ticks(X=list('abcdefgik'))
>>> data.head()[['X']]
    X
0 a
1 b
2 c
3 d
4 e

See also

onetick.py.agg.first()

otp.run

onetick.py.Source.tail()

onetick.py.Source.count()