[R] Replace Values in Matrix

[Romildo Martins]

Hello,

how to replace the "NA" by number zero?

> matrizt
                 [,1]           [,2]             [,3]        [,4]
[1,] 1.0000000            NA             NA         NA
[2,] 0.6717685 0.1453253             NA         NA
[3,] 0.3971276 0.1493241 0.14532526         NA
[4,] 0.1493241 0.1453253 0.06795269 0.06217967


Thanks!

Romildo