rcpp_mult2probvect {cladoRcpp} | R Documentation |
This function calls a C++ function which multiplies two vectors by each other elementwise, such that the output is of length(a) * length(b).
rcpp_mult2probvect(a, b)
a |
a numeric vector |
b |
a numeric vector |
This is the cross-product operation, which exists in R (%o%
or
tcrossprod
). However, it is handy to have is as a C++ function
for calculating the probability of pairs of descendant states, given the
probability of each state individually.
tcross_product_vector
the vector which is the product of the convolution
Nicholas Matzke matzke@berkeley.edu
%o%
, tcrossprod
, Rcpp_combn_zerostart
, rcpp_convolve
ca = c(1,2,3,4,5)
cb = c(2,2,2,2,2)
rcpp_mult2probvect(a=ca, b=cb)
# Same as:
c(ca %o% cb)
# Or:
c(outer(ca, cb))
# Or:
tcrossprod(ca, cb)