From 78400199cd3e00b294cc5b441e150770fc57393d Mon Sep 17 00:00:00 2001
From: ranke <ranke@d1b72e20-2ee0-0310-a1c4-ad5adbbefcdc>
Date: Mon, 14 Mar 2005 06:10:41 +0000
Subject: Added the option to leave the graphics file device open in drplot().

git-svn-id: http://kriemhild.uft.uni-bremen.de/svn/drfit@18 d1b72e20-2ee0-0310-a1c4-ad5adbbefcdc
---
 R/drfit.R     | 8 ++++++--
 man/drplot.Rd | 7 ++++++-
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/R/drfit.R b/R/drfit.R
index 9516180..7ffb1a0 100644
--- a/R/drfit.R
+++ b/R/drfit.R
@@ -215,7 +215,7 @@ drfit <- function(data, startlogEC50 = NA, chooseone=TRUE,
 drplot <- function(drresults, data, dtype = "std", alpha = 0.95,
         path = "./", fileprefix = "drplot", overlay = FALSE,
         postscript = FALSE, png = FALSE, bw = TRUE,
-        colors = 1:8)
+        colors = 1:8,devoff=T)
 {
     unitlevels <- levels(as.factor(drresults$unit))
     if (length(unitlevels) == 1) {
@@ -373,7 +373,11 @@ drplot <- function(drresults, data, dtype = "std", alpha = 0.95,
         }
     }
     if (overlay) legend(lhd - 1, hr + 0.1, dsubstances,lty = 1, col = colors)
-    if (overlay && (postscript || png)) dev.off()
+    if (overlay && (postscript || png)) {
+        if (devoff) {
+            dev.off()
+        }
+    }
 }
 
 checkplate <- function(plate,db="cytotox")
diff --git a/man/drplot.Rd b/man/drplot.Rd
index 784b65b..c9b1979 100644
--- a/man/drplot.Rd
+++ b/man/drplot.Rd
@@ -7,7 +7,7 @@
 }
 \usage{
   drplot(drresults, data, dtype, alpha, path, fileprefix, overlay,
-    postscript, png, bw, colors)
+    postscript, png, bw, colors, devoff)
 }
 \arguments{
   \item{drresults}{
@@ -62,6 +62,11 @@
   \item{colors}{
     This is a vector of colors, defaulting to 1:8, used for plotting the data.
     }
+  \item{devoff}{
+    If set to FALSE, the closing of the device after creation of an overlay png
+    or postscript graph will be left out, so texts and other elements can be 
+    added to the graph.
+    }
 }
 \value{
   \item{results}{
-- 
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