@@ -21,7 +21,7 @@ import(DelayedArray)

 exportClasses(

     Assays, SimpleAssays, ShallowData, ShallowSimpleListAssays,

     Assays_OR_NULL,

-    SummarizedExperiment, ExpData,

+    SummarizedExperiment,

     RangedSummarizedExperiment

 )

@@ -20,10 +20,6 @@ setClass("SummarizedExperiment",

     )

 )

-

-setClassUnion("ExpData", c("matrix", "SummarizedExperiment"))

-

-

 ### Combine the new "parallel slots" with those of the parent class. Make

 ### sure to put the new parallel slots **first**. See R/Vector-class.R file

 ### in the S4Vectors package for what slots should or should not be considered