From 14877903ecc33d3ea3375b31c15f3df347104472 Mon Sep 17 00:00:00 2001
From: Victor Lin <13424970+victorlin@users.noreply.github.com>
Date: Wed, 1 Jun 2022 11:26:42 -0700
Subject: [PATCH] Use left-only inclusiveness for pd.date_range

The `closed` parameter is deprecated in pandas==1.4.0, in favor of the `inclusive` parameter. See https://pandas.pydata.org/docs/reference/api/pandas.date_range.html
---
 augur/frequency_estimators.py | 3 ++-
 setup.py                      | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/augur/frequency_estimators.py b/augur/frequency_estimators.py
index 48d335e3d..c4841477e 100644
--- a/augur/frequency_estimators.py
+++ b/augur/frequency_estimators.py
@@ -63,7 +63,8 @@ def get_pivots(observations, pivot_interval, start_date=None, end_date=None, piv
     datetime_pivots = pd.date_range(
         float_to_datestring(pivot_start),
         float_to_datestring(pivot_end),
-        freq = offset
+        freq = offset,
+        closed="left"
     )
     pivots = np.array([timestamp_to_float(pivot) for pivot in datetime_pivots])
 
diff --git a/setup.py b/setup.py
index f5eda48a4..1442c304b 100644
--- a/setup.py
+++ b/setup.py
@@ -57,7 +57,7 @@
         "jsonschema >=3.0.0, ==3.*",
         "networkx >= 2.5, ==2.*",
         "packaging >=19.2",
-        "pandas >=1.0.0, ==1.*",
+        "pandas <1.4.0, ==1.*",
         "phylo-treetime ==0.8.*",
         "xopen >=1.0.1, ==1.*"
     ],