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  1. POCreate a graph/heat map based on a paper
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    <p>I want to create a graph like the one in <a href="http://www.google.com/imgres?um=1&amp;hl=el&amp;client=firefox-a&amp;sa=N&amp;rls=org.mozilla%3ael%3aofficial&amp;biw=1600&amp;bih=1108&amp;tbm=isch&amp;tbnid=PD6pwt90NQ9-hM%3a&amp;imgrefurl=http://www.sciencedirect.com/science/article/pii/S0092867411011342&amp;docid=7-5MvR4TgcE9gM&amp;itg=1&amp;imgurl=http://ars.sciencedirect.com/content/image/1-s2.0-S0092867411011342-gr1.jpg&amp;w=468&amp;h=652&amp;ei=UDSRT6nnGcv0-gaT1LD7Aw&amp;zoom=1&amp;iact=hc&amp;vpx=1218&amp;vpy=104&amp;dur=739&amp;hovh=265&amp;hovw=190&amp;tx=104&amp;ty=150&amp;sig=118005667344627929103&amp;page=1&amp;tbnh=114&amp;tbnw=82&amp;start=0&amp;ndsp=71&amp;ved=1t:429,r:8,s:0,i:82" rel="nofollow">this link </a>. I am interested in the graph H (Smad3 and Oct4 co-occupy the genome. For each of the 15,003 Oct4-bound sites (y axis), the presence of Oct4 (blue) and Smad3 (red) are displayed within a 5 kb window centered on each Oct4-bound site.) (adapted from Mellen et al., 2011)</p> <p>For that, I have created a coverage of my chip experiment. I have something like:</p> <pre><code>anna &lt;- Views(anna.cov[[chr]], start=start(experiment.islands),end=end(experiment.islands)) anna start end width [6] 72291 72694 404 [6 6 7 7 7 7 7 7 7 7 7 7 7 7 8 8 8 8 8 ...] [7] 82908 85491 2584 [ 3 3 3 3 3 3 3 3 3 3 3 3 4 ...] [8] 90902 91101 200 [6 6 6 6 6 6 6 6 7 7 7 7 7 6 6 6 6 7 7 ...] [9] 95272 95331 60 [6 6 6 6 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 ...] </code></pre> <p>Now what should I do?</p>
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