Remove NA/NaN/Inf in a matrix

Question

I want to try two things :

1. How do I remove rows that contain NA/NaN/Inf
2. How do I set value of data point from NA/NaN/Inf to 0.

So far

Answer 1

Just another way (for the first question):

m <- structure(c(1, 2, 3, NA, 4, 5, Inf, 5, 6, NaN, 7, 8), 
              .Dim = c(4L, 3L))
#      [,1] [,2] [,3]
# [1,]    1    4    6
# [2,]    2    5  NaN
# [3,]    3  Inf    7
# [4,]   NA    5    8

m[complete.cases(m * 0), , drop=FALSE]
#      [,1] [,2] [,3]
# [1,]    1    4    6

I can't think anything else other than Matthew's answer for the second part.