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dev.off()

5.3.8.2  Scatter Plot

The “vsScatterPlot()” function can be used to create a scatter plot that visualizes the com-

parisons of log10 values of either FPKM or CPM measurements under the two conditions

(Figure 5.31).

#Scatter plot

jpeg(‘CPMscatterplot.jpg’)

vsScatterPlot(

x = ‘norm’,

y = ‘tumo’,

FIGURE 5.32  MA plot showing the log-fold change against mean expression.