--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/variance_plot.R	Tue May 20 03:30:07 2014 -0400
@@ -0,0 +1,26 @@
+#Plottool makes a graph barplot of the variance
+#MB
+
+#commands extracting of commandline
+args <- commandArgs(TRUE)
+
+#input files and options
+input <- args[1]
+title <- args[2]
+#output file
+output <- args[3]
+
+#reading of input files
+read <- read.csv(file <- input,header = TRUE)
+
+stdev<- read[,1] #standard deviation
+pov = stdev^2/sum(stdev^2) #variance
+
+png(output) #output in png format
+
+
+#creating the barplot with the variance of pca 
+suppressMessages(barplot(pov, main = title, names.arg = c(1:NROW(pov)), ylim = c(0,1), col = heat.colors(3)))
+
+
+graphics.off()