The human blood feeding fraction is simply the proportion of human hosts.
# S3 method for BQ
compute_q(model, W, Wd, B)a vector of length p giving the proportion of bites taken on human hosts in each blood feeding haunt
an object from make_MicroMoB
a vector of length p giving human availability by patch (\(W\))
a vector of length p giving visitor availability by patch (\(W_{\delta}\))
a vector of length p giving total blood host availability by patch (\(B\))