[R] Three values that add to the same number by 0.01 steps

[S Ellison]

> I'd like to create a matrix with three columns so that each element is
> between 0 and 1 and each row always adds to 1. So, if in the same row the

You could start with expand.grid

m <- expand.grid(x1=0:100, x2=0:100)  #Avoids comparing floats
m <- m[rowSums(m)<=100,]                    #Throw away the oversized ones
m <- cbind(m, x3=100-rowSums(m))   #Get the final column
m <- m/100                                                     #Scale to [0,1]

table(rowSums(m))  


S Ellison



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