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#
# This demo draw chromosome ideogram with padding between
# chromosomes, highlights, chromosome names, and heatmap
# with gene expression data.
#
# Usage:
#
# library(RCircos);
# demo("RCircos.Heatmap.Demo");
# ______________________________________________________________________
# <RCircos DEMO><RCircos DEMO><RCircos DEMO><RCircos DEMO><RCircos DEMO>
# Load RCircos library
# _________________________________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
library(RCircos);
# Load human cytoband data and gene expression data
# _________________________________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
data(RCircos.Heatmap.Data);
data(UCSC.HG19.Human.CytoBandIdeogram);
cyto.info <- UCSC.HG19.Human.CytoBandIdeogram;
# Setup RCircos core components:
# _________________________________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
RCircos.Set.Core.Components(cyto.info, NULL, 5, 0);
# Open the graphic device (here a pdf file)
# _________________________________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
out.file <- "RCircos.Heatmap.Demo.pdf";
pdf(file=out.file, height=8, width=8);
RCircos.Set.Plot.Area();
# Draw chromosome ideogram
# _________________________________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
message("Draw chromosome ideogram ...\n");
RCircos.Chromosome.Ideogram.Plot();
title("RCircos Heatmap Plot Demo");
# Plot five tracks of heatmap
# _________________________________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
total.track <- 5;
for(a.track in 1:total.track)
{
data.col <- a.track + 4;
RCircos.Heatmap.Plot(RCircos.Heatmap.Data, data.col, a.track, "in");
}
# Close the graphic device
# _________________________________________________________________
# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
dev.off();
message("RCircos Heatmap demo done!\n");
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