From 07ae17770e1e839d2239890e20be6a132a46a377 Mon Sep 17 00:00:00 2001
From: Jarrett Ye <jarrett.ye@outlook.com>
Date: Mon, 25 Mar 2024 11:20:51 +0800
Subject: [PATCH] Fix/don't return empty dataframe in outlier filter (#95)

---
 pyproject.toml                       | 2 +-
 src/fsrs_optimizer/fsrs_optimizer.py | 2 --
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/pyproject.toml b/pyproject.toml
index 43c1b5a..138e052 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "FSRS-Optimizer"
-version = "4.26.6"
+version = "4.26.7"
 readme = "README.md"
 dependencies = [
     "matplotlib>=3.7.0",
diff --git a/src/fsrs_optimizer/fsrs_optimizer.py b/src/fsrs_optimizer/fsrs_optimizer.py
index b7d4f2d..3a795a2 100644
--- a/src/fsrs_optimizer/fsrs_optimizer.py
+++ b/src/fsrs_optimizer/fsrs_optimizer.py
@@ -427,8 +427,6 @@ def remove_outliers(group: pd.DataFrame) -> pd.DataFrame:
     ).index
 
     total = sum(grouped_group[("y", "count")])
-    if total <= 20:
-        return pd.DataFrame()
     has_been_removed = 0
     for i in sort_index:
         count = grouped_group.loc[i, ("y", "count")]