How to check each column in pandas data frame are in ascending order or not

Question

i want to know each column in pandas data frame are in ascending order or not.

**col1** **col2**  **col3**

99   102   103

97   103   107

100   108   109

for col1, col2 and col3 how to find which columns are in ascending order and which columns are not.

I think your question has already been answered here https://stackoverflow.com/questions/28093365/is-a-column-in-pandas-df-monotonically-increasing — MaximGi, Mar 24 '19 at 09:50
Possible duplicate of [Is a column in pandas.DF() monotonically increasing?](https://stackoverflow.com/questions/28093365/is-a-column-in-pandas-df-monotonically-increasing) — Jondiedoop, Mar 24 '19 at 09:54

score 1 · Accepted Answer · answered Mar 24 '19 at 10:00

1

Try:

df.apply(lambda x: x.is_monotonic)

answered Mar 24 '19 at 10:00

Loochie

score 0 · Answer 2 · answered Jan 09 '23 at 16:02

0

is_monotonic is deprecated. Now use:

assert df["x"].is_monotonic_increasing
assert df["y"].is_monotonic_increasing
assert df["z"].is_monotonic_increasing

answered Jan 09 '23 at 16:02

HeyMan

2 Answers2