lassoClass {a4Classif} | R Documentation |
Classify using the Lasso
lassoClass(object, groups)
object |
object containing the expression measurements; currently the only method supported is one for ExpressionSet objects |
groups |
character string indicating the column containing the class membership |
object of class glmnet
Willem Talloen
Goehlmann, H. and W. Talloen (2009). Gene Expression Studies Using Affymetrix Microarrays, Chapman \& Hall/CRC, pp. 183, 205 and 212.
if (require(ALL)){ data(ALL, package = "ALL") ALL <- addGeneInfo(ALL) ALL$BTtype <- as.factor(substr(ALL$BT,0,1)) resultLasso <- lassoClass(object = ALL, groups = "BTtype") plot(resultLasso, label = TRUE, main = "Lasso coefficients in relation to degree of penalization.") topTable(resultLasso, n = 15) }