html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/6691#issuecomment-1158434252,https://api.github.com/repos/pydata/xarray/issues/6691,1158434252,IC_kwDOAMm_X85FDE3M,90059220,2022-06-17T02:54:27Z,2022-06-17T02:54:27Z,NONE,"Thank you for upgrading this question. Using keewis suggestion:
> We could try to work around this by wrapping `argmin` and `argmax` in a function that ravels / unravels the reduce dimensions.

I had a look into `numpy` documentation and came up with a work around like so:
```python
import numpy as np, xarray as xr

arr = xr.DataArray(np.ones((5,6,7)))
arr[1,3,2], arr[3,1,4] = 0, 2

print('Values:',arr.min(), arr.max())

min_pos = np.concatenate(np.where(arr == arr.min()))
max_pos = np.concatenate(np.where(arr == arr.max()))
print('Indexes on nD:', min_pos, max_pos)
```
It is not perfect I suppose but it is doing the job for now.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1268821199
https://github.com/pydata/xarray/issues/6691#issuecomment-1153613732,https://api.github.com/repos/pydata/xarray/issues/6691,1153613732,IC_kwDOAMm_X85Ewr-k,14808389,2022-06-13T08:14:43Z,2022-06-13T08:14:43Z,MEMBER,"for reference, here's the MCVE:
```python
import xarray as xr

ds = xr.tutorial.open_dataset(""air_temperature"")
n = 3

window_size = {name: n for name in [""lat"", ""lon""]}
window = ds.rolling(window_size, center=True)
peak_min = window.argmin()
peak_max = window.argmax()
```

As far as I can tell, the reason is that `np.argmin` does not support more than one axis (the actual call is [here](https://github.com/pydata/xarray/blob/main/xarray/core/rolling.py#L430-L432)).

We could try to work around this by wrapping `argmin` and `argmax` in a function that ravels / unravels the reduce dimensions.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1268821199