Description Usage Arguments Details Value Author(s) Examples
This function takes an expression matrix and filtered out non detected genes.
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data |
expression matrix, genes on rows and samples on columns. |
threshold |
minimal value of expression to be reached |
p |
keep probes with at least p*ncol(data) samples higher than threshold |
graph |
boolean indicating if an histogram of the data should be plotted. |
The non variant genes are defined gy the threshold
value. A
gene is kept if at least p*ncol(data) of its values is higher than
threshold
.
The graph represents the distribution of all the genes in
Data
. A line shows the threshold value used.
An expression matrix.
Nicolas Servant, Eleonore Gravier, Pierre Gestraud, Cecile Laurent, Caroline Paccard, Anne Biton, Jonas Mandel, Bernard Asselain, Emmanuel Barillot, Philippe Hupe
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