From 8543e0603f9b81efd9472b72a0606a4df5f11c5e Mon Sep 17 00:00:00 2001
From: Tony Tung <ttung@chanzuckerberg.com>
Date: Wed, 19 Jun 2019 11:45:23 -0700
Subject: [PATCH] [easy] Warn about the deprecation of the MaxProject filter

Depends on #1386
---
 starfish/core/image/_filter/max_proj.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/starfish/core/image/_filter/max_proj.py b/starfish/core/image/_filter/max_proj.py
index ee88f6c33..30ad81253 100644
--- a/starfish/core/image/_filter/max_proj.py
+++ b/starfish/core/image/_filter/max_proj.py
@@ -1,3 +1,4 @@
+import warnings
 from typing import Iterable, Optional, Union
 
 from starfish.core.imagestack.imagestack import ImageStack
@@ -23,6 +24,10 @@ class MaxProject(FilterAlgorithmBase):
 
     def __init__(self, dims: Iterable[Union[Axes, str]]) -> None:
 
+        warnings.warn(
+            "Filter.MaxProject is being deprecated in favor of Filter.Reduce(func='max')",
+            DeprecationWarning,
+        )
         self.dims = dims
 
     _DEFAULT_TESTING_PARAMETERS = {"dims": 'r'}