preProcessGeneST {ArrayTools} | R Documentation |
Proprocess genechip ST array by taking the log2 of the expression value.
preProcessGeneST(object, offset = 1, rmControl = TRUE, output = FALSE, mydir = getwd())
object |
an ExpressionSet . |
offset |
The offset is added to the expression value to avoid log2(0) = -Inf. |
rmControl |
Setting rmControl = TRUE to remove control probes. |
output |
If output = TRUE , it will output the preprocessed data in the specified direcotry
from the mydir argument. |
mydir |
specifed directory to contain the output |
an ExpressionSet
Xiwei Wu, Arthur Li
data(eSetExample) processedData <- preProcessGeneST(eSetExample)