getSamples-methods:  Get samples (methods)
Description
 Methods for fetching subsets of samples from various data structures
Methods
 - x = "missing", y = "missing"
 -  Handle empty function call 
  - x = "ExpressionSet", y = "missing"
 -  Handle input of an object of class 
ExpressionSet. Select data for all samples.   - x = "ExpressionSet", y = "NULL"
 -  Handle input of an object of class 
ExpressionSet. Select data for all samples.   - x = "ExpressionSet", y = "vector"
 -  Handle input of an object of class 
ExpressionSet. Select data for a subset of samples.   - x = "vector", y = "missing"
 -  Handle input of a vector (interpreted as a matrix). Select data for all samples. 
  - x = "vector", y = "NULL"
 -  Handle input of a vector (interpreted as a matrix). Select data for all samples. 
  - x = "vector", y = "vector"
 -  Handle input of two vectors specifying data and sample subset information, respectively. 
  - x = "matrix", y = "missing"
 -  Handle input of a matrix. Select data for all samples. 
  - x = "matrix", y = "NULL"
 -  Handle input of a matrix. Select data for all samples. 
  - x = "matrix", y = "vector"
 -  Handle input of a matrix and a vector specifying data and sample subset information, respectively.