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Figure 1 | BMC Bioinformatics

Figure 1

From: Statistical analysis and significance testing of serial analysis of gene expression data using a Poisson mixture model

Figure 1

Probability density of several models applied to data generated from two Poisson components. 10 observations were randomly drawn from each of two Poisson distributions, one with a mean of 30, the other 40. The values drawn from the first component were (40, 34, 37, 28, 31, 21, 41, 27, 34, 27) and the values drawn from the second component were (36, 42, 26, 57, 43, 37, 38, 39, 35, 35). The probability densities are shown for a single Poisson distribution, the negative binomial distribution, and a two-component Poisson mixture distribution using maximum likelihood estimates (see Methods). The probability densities of the individual Poisson components from which the data were actually drawn are also shown. The individual observations are represented by triangles at the bottom of the plot.

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