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. Author manuscript; available in PMC: 2011 Feb 28.
Published in final edited form as: IEEE/ACM Trans Comput Biol Bioinform. 2009 Apr–Jun;6(2):296–309. doi: 10.1109/TCBB.2007.70249

Fig. 5.

Fig. 5

Using histograms that show the number of cells expressing a gene as a function of the expression levels makes it possible for a user to choose different cutoff values to allow aspects of the data to be better shown. (a) and (b) illustrate this concept by thresholding hunchback (hb) to reduce background noise. (c) and (d) use an extremely low maximum threshold for even-skipped (eve) (d) to illustrate that the inter-stripe expression levels of eve are typically higher than its expression levels on the anterior and posterior of the embryo.