Same as dot but handle single row matrix differently by multiplying each value but not sum them up
Usage
dot.ext(x, y, mydim)
Arguments
x
numeric vector or matrix
y
numeric vector or matrix
mydim
Elementwise product (if 1); otherwise defined by dot
Value
A scalar or vector of length the number of columns of x and y.
Details
Returns the 'dot' or 'scalar' product of vectors or columns of matrices. Two vectors must be of same length, two matrices must be of the same size. If x and y are column or row vectors, their dot product will be computed IF mydim is 1 (only difference from dot).