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By default, all the samples are selected to display, to remove a sample track, click on the  button next to the  sample name on the sample control panel (Figure ); to add a sample in the plot, select the sample name from the Add sample drop-down list, a new line will be added on the plot.

TSS heatmap

Heatmap is another way to view the coverage of gene body overlapped with the peaks (Figure ). The X-axis represents the same profile plot, actually each samples profile plot is display again on the top of the heatmap. In the heatmap, each row represents a gene, color represents the read coverage, genes are sorted based on total read counts in descending order from the top to the bottom.

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