| matrix-summary {BiocGenerics} | R Documentation |
Form row and column sums and means for rectangular objects..
NOTE: This man page is for the rowSums, colSums,
rowMeans, and colMeans S4 generic functions
defined in the BiocGenerics package.
See ?base::colSums for the default methods
(defined in the base package).
Bioconductor packages can define specific methods for objects
(typically array-like) not supported by the default method.
colSums (x, na.rm = FALSE, dims = 1)
rowSums (x, na.rm = FALSE, dims = 1)
colMeans(x, na.rm = FALSE, dims = 1)
rowMeans(x, na.rm = FALSE, dims = 1)
x |
a rectangular object, like a matrix or data frame |
na.rm, dims |
see colSums |
See ?base::colSums for the value returned by the
default methods.
Specific methods defined in Bioconductor packages will typically return an object of the same class as the input object.
base::colSums for the default
colSums, rowSums, colMeans, and colSums
methods.
showMethods for displaying a summary of the
methods defined for a given generic function.
selectMethod for getting the definition of
a specific method.
BiocGenerics for a summary of all the generics defined in the BiocGenerics package.
colSums
showMethods("colSums")
selectMethod("colSums", "ANY") # the default method