Description Usage Arguments Details Value Author(s) Examples
plot estimated absolute levels of any two userspecified conditions. The values in the plot are in log scale.
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data 
matrix containing estimated absolute levels. columns are conditons and rows are genes. 
condition 
integer vector giving the two conditions to be plotted. 
xlab 
a title for the x axis. 
ylab 
a title for the y axis. 
main 
an overall title for the plot. 
xlim 
the x limits (min,max) of the plot. 
ylim 
the y limits of the plot. 
pch 
an integer code for one of a set of plotting characters or symbols for the spike data set. Default is 19. 
cex 
a numerical value giving the amount by which points should be scaled relative to the default. Default is 0.2. 
col 
the color of the points. Default is black. 
diag 
a logical value. Add diagonal on the plot if it is 
diagcol 
the color of the diagonal. Default is blue. 
diaglwd 
the width of the diagonal. Default is 1.5. 
... 
other graphical parameters can be used in function

The function polts estimated absolute expression levels of two conditions. It accepts
expression levels from the argument 'data', which should have the same data format as
the output value of the function normalizeData
.
The two conditions to be plotted should be specified by the argument condition
.
The condition
should be a numeric vector with length two and it should be subset
of condition vector of the design matrix. see function NormalizeData
.
see other graphic functions for the other arguments.
A plot is created on the current graphics device.
Hui Zhao
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