Exchange numbers if one is more common than the other in a matrix R -


i have matrix looks like

0  0  0   0  1   2  na  0  0  0   0  0   0  0 2  1  2   0  1   0  2

say want recode rows 2 more frequent 0, replace them each other. row has 2's replaced 0 , vice versa. what's quick , easy way this?

i end this: (changing third row)

0  0  0   0  1   2  na  0  0  0   0  0   0  0 0  1  0   2  1   2  0

cheap:

t(apply(m, 1, function(x) {     x2 <- x==2     x0 <- x==0     if(sum(x2)>sum(x0)) {         x[x2] <- 0         x[x0] <- 2     }     x }))

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