Hi,
I'm trying to plot bar graphs with stacked columns marked with
askterisks for certain columns, which follow certain criteria.
I've gotten the stacked bar plots with Data set A (please refer to
code below). However, I haven't figured how to put asterisks on
columns based on some extra information (such as "used/unused") as in
Data set B i.e. asterisks at the top of the Index1 and Index3 columns.
---- R code ----
title = 'frequency'
filename = 'testdata2.txt'
sample_output = 'sequences'
# read in data
my.data <- read.delim(filename, sep="\t")
# data from second column onward
my.dataM <- my.data[,2:ncol(my.data)]
# rownames in first column
rownames <- my.data[,1]
# define colours for the categories
col
=
c
("red
","orange
","yellow
","green
","violet
","cyan","blue","pink","peachpuff","tomato","seagreen","salmon")
my.dataNcol <- ncol(my.data[,2:ncol(my.data)])
my.dataColour <- col[1:my.dataNcol]
# a bar plot with stacked bars
if (is.null(sample_output)) {
pdf( "BarPlot.pdf")
} else {
pdf(file=paste("BarPlot_", sample_output, ".pdf", sep="")) }
barplot(as.matrix(my.dataM),
main=title,
legend=rownames,
col=c(my.dataColour)
)
dev.off()
------Dataset A: data used with code above------
"" "Index1" "Index2" "Index3"
"matched" 0.819 0.174 0.007
"errors" 0.619 0.314 0.067
"unmatched" 0.479 0.385 0.136
------Dataset B: data intended to use -----
--(last row "used/unused" for determining whether to mark column with
asterisk or not)---
"" "Index1" "Index2" "Index3"
"matched" 0.819 0.174 0.007
"errors" 0.619 0.314 0.067
"unmatched" 0.479 0.385 0.136
"used/unused" y n y
-------
Thanks,
Dorothy
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