From 3ead7acba845b4f2552f555dfb29da889ed0cda8 Mon Sep 17 00:00:00 2001
From: Johannes Ranke <jranke@uni-bremen.de>
Date: Thu, 19 Jan 2017 09:42:21 +0100
Subject: Make max_twa() a bit safer

---
 man/max_twa.Rd | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'man')

diff --git a/man/max_twa.Rd b/man/max_twa.Rd
index 86cc174..e39165a 100644
--- a/man/max_twa.Rd
+++ b/man/max_twa.Rd
@@ -12,7 +12,11 @@ max_twa(x, window = 21)
 \item{window}{The size of the moving window}
 }
 \description{
-The maximum time weighted average concentration for a moving window
+If you generate your time series using \code{\link{sawtooth}},
+you need to make sure that the length of the time series allows
+for finding the maximum. It is therefore recommended to check this using
+\code{\link{plot.one_box}} using the window size for the argument
+\code{max_twa}.
 }
 \seealso{
 \code{\link{twa}}
-- 
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