pandas 如何更改 iterrows() 的起始索引？

Question

提问by SaikiHanee

We can use the following to iterate rows of a data frame.

我们可以使用以下内容来迭代数据框的行。

for index, row in df.iterrows():

What if I want to begin from a different row index? (not from first row)?

如果我想从不同的行索引开始怎么办？（不是第一行）？

Answer 1

i know this has an answer, but why not just do:

我知道这有一个答案，但为什么不这样做：

for i, r in df.iloc[1:].iterrows():

Answer 2

Try using itertools.islice

尝试使用 itertools.islice

from itertools import islice

for index, row in islice(df.iterrows(), 1, None):

Answer 3

Sure:

当然：

for i,(index,row) in enumerate(df.iterrows()):
    if i == 0: continue # skip first row

Or something like:

或者类似的东西：

for i,(index,row) in enumerate(df.iterrows()):
    if i < 5: continue # skip first 5 rows