1 files changed, 22 insertions, 1 deletions
diff --git a/R/kinresplot.R b/R/kinresplot.R
index be0a85d..36eb55a 100644
--- a/R/kinresplot.R
+++ b/R/kinresplot.R
@@ -1,3 +1,23 @@
+# $Id: kinresplot.R 106 2011-05-12 10:55:37Z jranke $
+
+# Copyright (C) 2008-2010 Johannes Ranke
+# Contact: mkin-devel@lists.berlios.de
+
+# This file is part of the R package kinfit
+
+# kinfit is free software: you can redistribute it and/or modify it under the
+# terms of the GNU General Public License as published by the Free Software
+# Foundation, either version 3 of the License, or (at your option) any later
+# version.
+
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+# details.
+
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>
+
 kinresplot <- function(kinobject, kinmodel,
 	xlab = "Time [days]", ylab = "Residual [% of applied radioactivity]",
 	maxabs = "auto")
@@ -5,10 +25,11 @@ kinresplot <- function(kinobject, kinmodel,
 	m <- kinobject$fits[[kinmodel]]
 	t <- m$model$t
 	residuals <- residuals(m)
-	if (maxabs == "auto") maxabs = max(abs(residuals))
+	if (maxabs == "auto") maxabs = max(abs(residuals), na.rm = TRUE)
 	plot(t, residuals,
 		xlab = xlab,
 		ylab = ylab,
 		ylim = c( -1.2 * maxabs, 1.2 * maxabs))
+  abline(h=0, lty=2)
 	title(paste("Residuals of", kinmodel, "fit"), font.main = 1)
 }