infer_freq: return 'YE' (pydata#8629 follow-up)

mathause · mathause · commit bcc09aee12e0 · 2024-01-22T19:51:46.000+01:00
diff --git a/xarray/coding/frequencies.py b/xarray/coding/frequencies.py
@@ -183,7 +183,7 @@ def _get_annual_rule(self):
         if len(np.unique(self.index.month)) > 1:
             return None
 
-        return {"cs": "YS", "ce": "Y"}.get(month_anchor_check(self.index))
+        return {"cs": "YS", "ce": "YE"}.get(month_anchor_check(self.index))
 
     def _get_quartely_rule(self):
         if len(self.month_deltas) > 1:
diff --git a/xarray/tests/test_cftimeindex.py b/xarray/tests/test_cftimeindex.py
@@ -1353,7 +1353,7 @@ def test_infer_freq_invalid_inputs():
     "freq",
     [
         "300YS-JAN",
-        "Y-DEC",
+        "YE-DEC",
         "YS-JUL",
         "2YS-FEB",
         "QE-NOV",

Original file line number	Diff line number	Diff line change
`@@ -1353,7 +1353,7 @@ def test_infer_freq_invalid_inputs():`
`1353`	`1353`	`"freq",`
`1354`	`1354`	`[`
`1355`	`1355`	`"300YS-JAN",`
`1356`		`- "Y-DEC",`
	`1356`	`+ "YE-DEC",`
`1357`	`1357`	`"YS-JUL",`
`1358`	`1358`	`"2YS-FEB",`
`1359`	`1359`	`"QE-NOV",`