R: How to multiply list elements by a vector? -


i want multiply list of matrices (with 1 row), this:

lst <- list("111.2012"=matrix(c(1, 0, 6, na, 1, 0),                             nrow = 1, byrow = t),           "112.2012"=matrix(c(6, 2, 2, 0, 3, na),                             nrow = 1, byrow = t))

with vector (with same length each matrix):

vec <- c(1,2,3,1,2,3)

and expect result:

$`111.2012`      [,1] [,2] [,3] [,4] [,5] [,6] [1,]    1    0   18   na    2    0  $`112.2012`      [,1] [,2] [,3] [,4] [,5] [,6] [1,]    6    4    6    0    6   na

i tried far this:

mapply("*", lst, vec)  map("*", lst, vec)

which gives 3 times more numbers , wrong ones. thought of using lapply within mapply adress list, didn't know how it. suggestions? thanks

i believe looking lapply(), since using list lapply( lst, fun= function(x) x*vec)

for more information see this.

hope helps!

lapply(lst,fun= function(x) x*vec) ## old clunky way  lapply(lst, "*" , vec) ## informed richard scriven (thanks!)  $`111.2012`      [,1] [,2] [,3] [,4] [,5] [,6] [1,]    1    0   18   na    2    0  $`112.2012`      [,1] [,2] [,3] [,4] [,5] [,6] [1,]    6    4    6    0    6   na

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