Learning pandas

Peeking at data with heads, tails, and take

pandas provides the .head() and .tail() methods to examine just the first few, or last, records in a Series. By default, these return the first or last five rows, respectively, but you can use the n parameter or just pass an integer to specify the number of rows:

In [23]:
   # first five
   s.head()

Out[23]:
   0    0
   1    1
   2    1
   3    2
   4    3
   dtype: float64

In [24]:
   # first three
   s.head(n = 3) # s.head(3) is equivalent

Out[24]:
   0    0
   1    1
   2    1
   dtype: float64

In [25]:
   # last five
   s.tail()

Out[25]:
   5     4
   6     5
   7     6
   8     7
   9   NaN
   dtype: float64

In [26]:
   # last 3
   s.tail(n = 3) # equivalent to s.tail(3)

Out[26]:
   7     6
   8     7
   9   NaN
   dtype: float64

The .take() method will return the rows in a series that correspond to ...