python - pandas take k entries from head and tail -


how can k (let's 100) entries pandas.dataframe head , tail of dataframe? suggest 2 separate steps , merge operation, seems tedious. there better way? tried use df.iloc[:100,:-100], return first 100 records.

you can use iloc numpy.r_ concanecate indices:

n = 3 df = df.iloc[np.r_[0:n, -n:0]]

sample:

np.random.seed(45) df = pd.dataframe(np.random.randint(10, size=(10,5))) print (df)    0  1  2  3  4 0  3  0  5  3  4 1  9  8  1  5  9 2  6  8  7  8  5 3  2  8  1  6  4 4  8  4  6  4  9 5  1  6  8  8  1 6  6  0  4  9  8 7  0  9  2  6  7 8  0  0  2  9  2 9  6  0  9  6  0  n = 3 df = df.iloc[np.r_[0:n, -n:0]] print (df)    0  1  2  3  4 0  3  0  5  3  4 1  9  8  1  5  9 2  6  8  7  8  5 7  0  9  2  6  7 8  0  0  2  9  2 9  6  0  9  6  0

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