Matrices are atomic vectors, lists, or objects of type "expression" with a "dim"
attributes of length 2.
Usage
opts_matrix(constructor = c("matrix", "array", "cbind", "rbind", "next"), ...)Details
Depending on constructor, we construct the object as follows:
"matrix": We usematrix()"array": We usearray()"cbind","rbind": We usecbind()or"rbind()", this makes named columns and rows easier to read."next": Use the constructor for the next supported class. Call.class2()on the object to see in which order the methods will be tried. This will usually be equivalent to"array""atomic": We define as an atomic vector and repair attributes
