Expression matrix, genes on rows and samples on columns
labels
A character string or numeric vector of label
plot
If true, plots are displayed
...
Arguments to be passed to methods, such as graphical parameters (see 'par').
Value
A list of objects of class 'histogram':
mids
The n cell midpoints
counts
n integers; for each cell, the number of 'x[]' inside.
Details
For each gene (row of the matrix), the distribution of the expression level
for all the samples is ploted. The colors are chosen according to the
label information.