mars.dataframe.Series.tail#
- Series.tail(n=5)#
Return the last n rows.
This function returns last n rows from the object based on position. It is useful for quickly verifying data, for example, after sorting or appending rows.
For negative values of n, this function returns all rows except the first n rows, equivalent to
df[n:]
.- Parameters
n (int, default 5) – Number of rows to select.
- Returns
The last n rows of the caller object.
- Return type
type of caller
See also
DataFrame.head
The first n rows of the caller object.
Examples
>>> import mars.dataframe as md >>> df = md.DataFrame({'animal': ['alligator', 'bee', 'falcon', 'lion', ... 'monkey', 'parrot', 'shark', 'whale', 'zebra']}) >>> df.execute() animal 0 alligator 1 bee 2 falcon 3 lion 4 monkey 5 parrot 6 shark 7 whale 8 zebra
Viewing the last 5 lines
>>> df.tail().execute() animal 4 monkey 5 parrot 6 shark 7 whale 8 zebra
Viewing the last n lines (three in this case)
>>> df.tail(3).execute() animal 6 shark 7 whale 8 zebra
For negative values of n
>>> df.tail(-3).execute() animal 3 lion 4 monkey 5 parrot 6 shark 7 whale 8 zebra