--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/deseq/differential_expression_analysis_pipeline_for_rnaseq_data-a03838a6eb54/DiffExpAnal/DESeqTools/barplotNul.R	Mon May 13 10:06:30 2013 -0400
@@ -0,0 +1,20 @@
+# barplotNul
+# barplot representing null counts per sample
+
+# input : counts, target, projectName
+# output : barplotNul (png)
+
+# created Feb 7th, 2012
+# modified April 30th, 2012 (target$group instead of target)
+# Marie-Anges Dillies
+
+barplotNul <- function( counts, group,  OUT_barplotNulName, out = TRUE ){
+
+  if (out) png( file=OUT_barplotNulName )
+
+  N <- apply(counts, 2, function(x){sum(x == 0)})/nrow(counts)
+  barplot(N, col=as.integer(group)+1, main = "Proportion of null counts per Sample", ylim = c(0,1))
+  legend("topright", as.character(unique(group)), lty=1, col=as.integer(unique(group))+1)
+
+  if (out) dev.off()
+}