assessSD {affycomp} | R Documentation |
Assessment function for standard deviation estimates.
Takes a dilution data
ExpressionSet-class
and returns a list with necessary
information to create assessment plot.
assessSD(exprset,method.name=NULL,logx=FALSE)
exprset |
An ExpressionSet-class containing
expression measures for Affymetrix's spike-in experiment. |
method.name |
Name of expression measure being assessed. |
logx |
Logical. If TRUE expression is logged for plot. See details. |
assessSD
does the assessment for Figure 7. This requires the
ExpressionSet
to have standard error estimates for the expression
measure. Some expression (such as dChip) will have SEs for the
original scale. Others, like RMA will have them for the log scale. For
original scales, making logx=TRUE
is recommended.
Lists with the necessary information to make the Figures.
Rafael A. Irizarry