From cf634aa3aafc55b573079ee3c7a63020057ac09b Mon Sep 17 00:00:00 2001
From: matteo <matteo.ghetta@gmail.com>
Date: Tue, 28 May 2019 15:40:47 +0200
Subject: [PATCH] [processing] fix NDVI calculation

---
 .../plugins/processing/algs/qgis/ui/RasterCalculatorWidgets.py  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/plugins/processing/algs/qgis/ui/RasterCalculatorWidgets.py b/python/plugins/processing/algs/qgis/ui/RasterCalculatorWidgets.py
index a804fb6e1f0..5c3d1874161 100644
--- a/python/plugins/processing/algs/qgis/ui/RasterCalculatorWidgets.py
+++ b/python/plugins/processing/algs/qgis/ui/RasterCalculatorWidgets.py
@@ -122,7 +122,7 @@ WIDGET, BASE = uic.loadUiType(
 
 class ExpressionWidget(BASE, WIDGET):
 
-    _expressions = {"NDVI": "([NIR] - [Red]) % ([NIR] + [Red])"}
+    _expressions = {"NDVI": "([NIR] - [Red]) / ([NIR] + [Red])"}
 
     def __init__(self, options):
         super(ExpressionWidget, self).__init__(None)