From b67d86fb80bcb899c6f4cdff9a2764ec4fc9f79b Mon Sep 17 00:00:00 2001
From: Bert Palm <bert.palm@ufz.de>
Date: Wed, 18 Aug 2021 16:56:39 +0200
Subject: [PATCH] [FIX] crossstats faild for empty mask
---
saqc/core/flags.py | 5 ++++-
saqc/funcs/outliers.py | 3 +++
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/saqc/core/flags.py b/saqc/core/flags.py
index 730ec1e98..1ffcbfc0a 100644
--- a/saqc/core/flags.py
+++ b/saqc/core/flags.py
@@ -309,7 +309,10 @@ class Flags:
try:
tmp[mask] = value
except Exception:
- raise ValueError("bad mask")
+ raise ValueError(
+ f"bad mask. cannot use mask of length {len(mask)} on "
+ f"data of length {len(tmp)}"
+ )
else:
value = tmp
diff --git a/saqc/funcs/outliers.py b/saqc/funcs/outliers.py
index cb3f71178..6f0094ef5 100644
--- a/saqc/funcs/outliers.py
+++ b/saqc/funcs/outliers.py
@@ -1226,6 +1226,9 @@ def flagCrossStatistic(
diff_scores = df.subtract(stat, axis=0).abs()
mask = diff_scores > thresh
+ if mask.empty:
+ return data, flags
+
for var in fields:
flags[mask[var], var] = flag
--
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